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Call it proof of how carefully students court college admissions offices these days :thank-you notes have become the new trend . Tank the one that came with M &Ms to match Lehigh University's school color1s of brown and white ,and with the applicant's name inscribed on the candy .She thanked officials for her interview adding ,"Keep me on the tip of your tongue when reviewing applications ." Leon Washington ,the dean of admissions and financial aid at Lehigh ,said that Lehigh received 50or 60 thank-you notes in just one day last week ,The notes are directed not just to admission officers ,but also to college tour guide and alumni who are often the ones conducting college interviews these days . Parents also _ the act ,such as the couple that thanked Mr. O'Cain of Furman for a "most positive "campus visit .Then they put in a plug for their son ,saying that he had always been " a high achiever and a hard worker "and that they knew Furman would be just the place to "help him reach his potential " At other campuses ,like Williams College and Princeton ,the motes go into applicants' files "Is it necessary to write a thank -you note ?"said Janet Rapelye ,dean of admissions at Princeton "No ,in and of itself .it's not going to change a decision ,But I'm still in favor of them ,Expressing gratitude is a lovely quality " Sometimes they are lovely .Carolyn Lawrence in California ,who advises students and their parents on college admissions ,recalls a note she received from a student admitted early to her first-choice college ,It came on a postcard of the Eiffel Tower ,It said : "I spent my spring break ----- a) on last -minute college visits b) in a month-long anxiety attack waiting to her back from colleges c) vacationing in Paris with my family and being forever grateful to Carolyn Lawrence for her help The answer is C. Thank you " From the first and last examples of thank-you notes ,we can see that _
[ "they are addressed only to the admissions officers", "students took care writing and designing them", "thank-you notes are often sent together with little gifts", "e-mail tank-you notes are not so impressive as hand -written ones" ]
1B
college_medicine
mmlu_labeled
"The price of books for our students is just getting higher and higher and,combined with the rising cost of tuition,it's killing these students,"said Peter Jason,a college professor."Remember,students are one of the poorest groups of people in America.Almost half of them have at least one part-time job.In fact,one of my students has three jobs.And she still manages to have high scores and go to school full-time." Textbook prices are traditionally high.Adding to that problem,many college teachers change textbooks year after year;they either upgrade to a new edition or switch to an entirely different textbook.This further hurts students because if an instructor no longer uses a particular textbook,that book has no resale value. Dr.Jason decided to make lire a little easier and a lot cheaper for his students by writing his own book on public speaking."Many books have an increased price because of CD-ROMs,lots of color photographs and pictures.I talked to my students,and many of them,like me,prefer to keep things simple! So,a few years ago,I wrote my own textbook.Compared to most other public speaking books,mine is half the number of pages,and one-third the price.That is,$30 instead of $90.When I wrote a second edition last year,students only had to buy the 35 new pages, For only $7.00,they had almost a new book. Now my loose-leaf textbook enjoys great popularity among the students.Maybe in the future more writers and publishers will try it." What did Dr. Jason say about students at college?
[ "They are short of money.", "They need better textbooks", "They should do part-time jobs.", "They are trying to get high scores." ]
0A
college_medicine
mmlu_labeled
1 On Friday, January 14, 2005, my cousin, Kara Rose, came into the world. 2 She looked perfectly healthy from the outside, but on the inside, the doctors had failed to discover a serious problem. 3 She often had trouble breathing and then turned blue. 4 The doctors found that Kara had been born without part of her heart. 5 They didn't think she would live long enough to leave the hospital. 6 When she was four days old, she had her first operation. 7 My family stayed together during this hard time, hoping everything would turn out for the best. Kara's strength and determination to live were strong. Eventually, she could go home. We all waited patiently for new technology that could give Kara a new heart. When she was eighteen months old, her parents took her to a famous surgeon who performed a series of operations. There was no guarantee she would make it through the operation, but she succeeded. Kara grew stronger every day, and it was not long before she was well enough to be around people. She had an amazing character and always wore a sweet smile. When she fell asleep against my body, happy and content, I realized how valuable life really is. As I took her in my arms with her warm breath against my neck, I decided to live every day of my life to the fullest. This child, who is 15 years younger than I, has gone through more suffering and pain than I ever have. I admire her strength and determination. Kara has taught me that no matter how bad things seem, they can work out in the end. Knowing this small, beautiful child has made me a stronger person, I now believe that difficulty can be beaten. When did Kara have the first operation?
[ "15 years old.", "4 years old.", "4 days old.", "18 months old." ]
2C
college_medicine
mmlu_labeled
Scientists have claimed a milestone in the drive for new energy--development of the first practical artificial leaf, an advanced solar cell that imitates the process,called photosynthesis ,that green plants use to make sunlight and water into energy. "A practical artificial leaf has been a dream of scientists for decades,"said Daniel Nocera,who led the research team."We believe we have made it.The artificial leaf shows particular promise as an inexpensive source of electricity for homes of the poor in developing countries. One can imagine villages in India and Africa soon purchasing an affordable basic power system based on this technology." The leaf is like the shape of a poker card but thinner.Placed in water in a bright sunlight,it could produce enough electricity to supply a house in a developing country with electricity for a day by splitting water into hydrogen and oxygen, which are stored in a fuel cell to produce electricity. The"artificial leaf"is not a new concept.The first artificial leaf was developed more than a decade ago by John Ttlrner.However, it was impractical for wider use,as it was composed of rare,expensive metals and was highly unstable with a lifespan of barely one day. Nocera's new leaf overcomes these problems.It is made of inexpensive materials that are widely available,works under simple conditions and is highly stable.Laboratory studies showed that it could operate continuously for at least 45 hours without a drop in activity. The key to this breakthrough is Nocera's recent discovery of several new powerful, inexpensive catalysts,which are able to accelerate the chemical reaction under simple conditions.Right now, Nocera's leaf is about 10 times more efficient at carrying out photosynthesis than a natural leaf.Yet he is optimistic that he can boost the efficiency of the device much higher in the future. Daniel Nocera describes his artificial leaf as promising in _ .
[ "making an artificial plant that can feed itself.", "finding a new kind of catalyst to produce electricity.", "changing the sunlight and water into electricity directly", "providing electricity for the poor family at a low cost" ]
3D
nutrition
mmlu_labeled
Jayson McCarthy, 12, was born without fingers on his left hand. That didn't stop him from being able to do many tasks. But Jayson could not grasp more than one object at a time. So Jayson 's father, Paul, created a Prosthesis , using a 3D printer. Now Jayson has fingers that open and close. "It was a do-it-yourself, father-and-son adventure," says Paul. When Jayson was a baby, his doctor advised his parents not to give him a prosthetic hand until he was in his early teens. "The doctor said Jayson should first learn to get full use out of the hand he was born with," says Paul. As Jayson got older, his father looked into _ a prosthetic hand, which can cost as much as $30,000. Paul found a more affordable solution. One day, Paul discovered a video on the Internet about Robohand, a prosthesis created with a 3D printer. He downloaded the free instructions and called Robohand's creators for advice. They told him all he needed was a 3D printer--which costs around $2,000--and some materials. Luckily, Jayson 's school had recently purchased a 3D printer and it offered to help Paul build the hand for Jayson n. "We used a soccer shinguard , cardboard , and tape. They cost about $10," says paul. With his new hand, Jayson can do things better. "I can help my mom more, because now I can carry two grocery bags," he says. Jayson 's father has already built several hands for Jayson. Jayson helps design each one. He says there's one thing in particular that he wants to do with a future prosthesis. "The goal," he says, "is to be able to tie my shoelaces ." Jayson 's father managed to get Jayson a new hand by _ .
[ "collecting money on the Internet", "buying a prosthetic hand", "buying a 3D printer", "printing a hand" ]
3D
college_medicine
mmlu_labeled
Common indoor plants may prove to be a valuable weapon in the fight against rising levels of indoor air pollution. Those plants in your office or home are not only pretty, but NASA scientists are finding them to be surprisingly useful in absorbing possible harmful gases and cleaning the air inside modern buildings. NASA have announced the finds of a 2-year study that suggested the common indoor plants may provide a natural way of helping fight against "Sick Building Syndrome ". Research into the use of biological processes as a means of solving environmental problems, both on Earth and in space habitats, has been carried out for many years by Dr. Bill Wloverton, a senior research scientist at NASA. Based on preliminary evaluations of the use of common indoor plants for indoor air purification ,NASA funded a study using about a dozen popular varieties of attractive plants to determine their effectiveness in removing several key pollutants linked with indoor air pollution. NASA research on indoor has found that living plants are so efficient at absorbing pollutants in the air that some will be launched into space as part of the biological life support system aboard future orbiting space stations. While more research is needed, Wolverton says the study has shown that common indoor plants can remove certain pollutants from the indoor environment. "We feel that future results will provide an even stronger argument that common indoor plants can be a very effective part of a system used to provide pollution free homes and work places," he concludes. "Combining nature with technology can increase the effectiveness of plants in removing air pollutants," he said. NASA research has always shown that living, green and flowering plants can remove several poisonous chemicals from the air inside buildings. You can use plant in your home or office to improve the quality of the air to make it a more pleasant place to live and work--where people feel better, perform better, and enjoy life more. Why do you think NASA are very interested in indoor plants?
[ "Some indoor plants would be used in space stations.", "They want to find a way to cure Sick Building Syndrome.", "They need indoor plants to carry out their experiments.", "Indoor plants are pretty and attractive." ]
0A
nutrition
mmlu_labeled
What do these two changes have in common? mixing chocolate syrup into milk stapling an envelope shut
[ "Both are caused by cooling.", "Both are chemical changes.", "Both are caused by heating.", "Both are only physical changes." ]
3D
natural science
scienceqa
Based on this information, what is Twinkle's phenotype for the leg color trait?
[ "white legs", "yellow legs" ]
0A
natural science
scienceqa
Now machines are widely used all over the world. Why are machines so important and necessary for us? Because they can help us to do things better and faster. A washing machine helps us to wash clothes fast. A printing machine helps us to print a lot of books, newspapers, magazines and many other things fast. Bikes, cars, trains and planes are all machines. They help us to travel faster than on foot. The computer is a wonderful machine. It was invented not long ago. It not only stores information but also stores numbers millions of times as fast as a scientist does. Let's study hard and try to use all kinds of machines to build China into a modern country. If we want to build China into a modern country. We must _ .
[ "study hard", "try to use all kinds of machines", "invent many machines", "all above" ]
3D
college_computer_science
mmlu_labeled
It is now commonly known that AIDS is a deadly disease. It does great damage to human beings' immune system, weakening resistance to disease and leading to death due to utter weakness. To this day, there are no existing drugs that can kill AIDS virus. It is a deadly battle between science and AIDS. This is only one side of the story. Although it can not be cured, AIDS is preventable. For those who have not caught the disease, the knowledge of preventive measures seems to be the most powerful weapon at hand. Since the discovery of the first AIDS patient in 1985, the number of HIV carriers is on an alarming rise in China and statistics show that young people are the more likely victims of AIDS. Nationwide there are 214 million people between the ages of 13 and 22, most of whom are students. If no measures are taken to protect these young people, it is almost certain that the threat of AIDS will be very real to them. There has been a great deal of misinformation concerning the transmission of AIDS. One of the most misleading myths is that AIDS can be transmitted by casual physical contact such as kissing, shaking hands or sharing food container. Surveys and investigations conducted in some universities and colleges show that half of those people questioned are not clear about how AIDS is transmitted, not to mention how it is prevented. This is the driving force behind the State Education Department's decision to spread AIDS awareness information among college students and later to high school students and primary school students. By writing "This is only one side of the story", the author suggests that _ .
[ "although we can't cure AIDS, we can manage to prevent it.", "AIDS is very dangerous, but we should not be scared of it.", "AIDS is not curable, but doctors should not give up fighting against it.", "although the doctors cannot cure the disease, they can help improve the patients' health." ]
0A
college_medicine
mmlu_labeled
Residents of Golestan Province in northern Iran have one of the highest rates of esophageal cancer in the world. They don't drink alcohol or smoke--the two primary risk factors for the disease in the west--but they do consume tea, nearly 1.2 liters per day, on average. So local researchers set out looking for a connection. They employed 300 esophageal cancer patients who were diagnosed in the eastern part of Golestan and matched them up with 571 healthy controls who shared their age, gender and place of residence. All but one of them drank tea, and they gave interviewers information about their tea consumption and brewing habits. Teaming up with investigators from the U.S., England, France and Sweden, the researchers calculated that people who said they drank "hot" tea (149 to 156 degrees Fahrenheit) were more than twice as likely to develop esophageal cancer as people who said they drank the beverage "warm" or "lukewarm" (less than 140 degrees). Those who said they took their tea "very hot" (at least 158 degrees) were more than eight times as likely to get esophageal cancer, according to the study, published online Thursday in the British Medical Journal. The scientists have now connected it with esophageal cancer. The problem doesn't appear to be the tea itself, but the temperature at which it is consumed, their study found. The researchers also asked people how long they waited to drink their tea after pouring it. Those who said they waited two to three minutes were nearly 2.5 times more likely to develop the cancer compared with people who said they waited at least four minutes. Impatient tea drinkers who waited less than two minutes were 5.4 times as likely to be diagnosed with esophageal cancer, the study found. The study didn't assess the mechanism linking hot tea to esophageal cancer, but the researchers said the temperature of the liquid was almost certainly to blame rather than the compounds in the tea itself. Which would be the best title for this passage?
[ "Drinking Tea with Patience", "An Esophageal Cancer Stricken Area", "Temperature and Esophageal Cancer", "Various Causes of Cancer" ]
2C
college_medicine
mmlu_labeled
EDGEWOOD-Every morning at Dixie Heights High school,customers pour into a special experiment:the district's first coffee shop run mostly by students with special learning needs. Well before classes start,students and teachers order Lattes,Cappuccinos and Hot Chocolates.Then,during the first period,teachers call in orders on their room phones,and students make deliveries.By closing time at 9:20a.m.,the shop usually sells 90drinks."Whoever made the chi tea,Ms.Schatzman says it was good,"Christy McKinley,a second year student,announced recently,after hanging up with the teacher. The shop is called the Dixie PIT,which stands for Power in Transition.Although some of the students are not disabled,many are,and the PIT helps them prepare for life after high school.They learn not only how to run a coffee shop but also how to deal with their affairs.They keep a timecard and receive paychecks,which they keep in check registers. Special-education teachers Kim Chevalier and Sue Casey introduced the Dixie PIT from a similar program at Kennesaw Mountain High School in Georgia.Not that it was easy.Chevalier's first problem to overcome was product-related.Should schools be selling coffee?What about sugar content?Kenton County Food Service Director Ginger Gray helped.She made sure all the drinks,which use non-fat milk,fell within nutrition guidelines. When does the coffee shop close?
[ "In the early morning.", "At 9:20a.m.", "At 9a.m.", "In the afternoon." ]
1B
college_medicine
mmlu_labeled
In March 2012, researchers in the United States announce that they have developed the first wirelessly controlled device that can supply a drug directly into the body. A small chip is implanted under the skin. It contains the medicine, which it releases at preset times. The developers say the device could improve the lives of millions of people who take medicine for long-term illnesses. A company called MicroCHIPS began developing the device about fifteen years ago. Last month, the company released the results of its first successful tests in humans. The tests took place in Denmark with seven women with osteoporosis. Osteoporosis causes bones to become weak and break easily. The disorder is common among older people, especially women. Many patients have to give themselves daily injections of medicine. One type of treatment requires injections for two years. Robert farra is the president of MicroCHIPS. He says many patients stop taking the medicine because of the pain and stress of the injections and that only twenty-five percent of the patients will go through the entire twenty-four months of treatment. The microchip is a few centimeters long. It has small sections that each hold a single dose of medicine. Mr. Farra says the device has to be programmed with the times to release the drug and that doctors will be able to reprogram the device from a computer or even a cell phone. The seven women in the study were aged sixty-five to seventy. The researchers say the implants were just as effective as daily injections. And they say the dosage amounts were more exact than patients often give themselves. The microchips in the study held only twenty doses of medicine. Mr. Farra and his team are now designing a version that could hold a full year's worth of medicine. Robert Farra says, "The new version may take us two years, and then we may be required to do two additional trials, taking about four years before the device is available on the commercial scale." Which may be the best title of the passage?
[ "Taking medicine with a microchip under the skin", "A successful test with seven women", "Microchips are very useful", "A new treatment of osteoporosis" ]
0A
college_medicine
mmlu_labeled
Hello, boys and girls! My name is Zhang Hanyun, and my English name is Selina Zhang. Kristy Zhang's Chinese name is also Zhang Hanyun. She is a singer. But I'm a clerk at Mr. Cool's Clothes Store. We have shorts in black and white for $3. We have shirts in blue, black and white. The blue shirts are $7. The black shirts are also $7. The white shirts are on sale for $4. For boys, we have white socks. A pair of white socks is only $1. We only have black shoes. We sell black shoes for only $18. Come and see for yourself at Mr. Cool's Clothes Store. You have $21, and you can buy _ pairs of shorts.
[ "3", "7", "8", "6" ]
1B
elementary_mathematics
mmlu_labeled
It is hard to predict how science is going to turn out , and if it is really good science, it is impossible to predict. If the things to be found are actually new, they must be unknown in advance You cannot make choices on this matter. You either have science or you don't and if you have it you have to accept the surprising and disturbing pieces of information, along with the neat and useful bits. The only solid piece of scientific truth about which I feel totally confident is that we don't know enough about nature. Indeed, I regard this as the major discovery of the past hundred years of biology. It is, in its way, a clear piece of news. It would have amazed the brightest minds of the 18th century to be told by any of us how little we know and how strange seems the way ahead . In earlier times, they either pretended to understand how things worked or simply made up stones to give answers. Now that we have begun exploring seriously, we are catching sight of how huge the questions are, and how far from being answered. Because of this, we are sorry. It is not so bad being ignorant if you are totally ignorant; the hard thing is knowing in some detail the reality of ignorance, the worst spots and here and there the not-so-bad spots, but no true light at the end of the tunnel nor even any tunnels that can yet be trusted. But we are making a beginning, and there ought to he some satisfaction. There are probably no questions we can think up that can't he answered, sooner or later. Within our limits, we should be able to work our way through to all our answers, if we keep at it long enough, arid pay attention. The writer believes that sooner or later _ .
[ "man can't deal with all the problems he can find because of the limits of human knowledge", "man can find solutions to whatever questions concerning nature he can think up.", "questions concerning nature are outside the field of scientific research", "man can think up all the questions and answer them all" ]
1B
college_biology
mmlu_labeled
Many cultures have different ideas about why people catch colds. For example in the United States, some people think that you can catch a cold if your feet get cold. So, mothers tell small children to wear warm boots in the winter. In other places, including parts of the Middle East, some people believe that strong winds cause colds. So, on trains and buses, people usually don't like to sit next to open windows. In parts of Europe, some people think that wearing wet clothes will give you a cold. They say that after you go swimming, you should quickly put on dry clothes. Today, scientists know that colds are caused by a virus . But the old ideas are still very strong, and many _ . In " _ ", what does "them" mean?
[ "scientists", "old ideas", "colds", "dry clothes" ]
1B
college_medicine
mmlu_labeled
In many romantic movies or TV shows one scene always appears. It involves a handsome man standing outside a young woman's window, singing a love song to her to win her over. However, trying to woo a female with songs is not just something that humans do. A few animals sing love songs as well. Birds and elephants are romantic but the latest animal to _ a female might surprise you--it is the humble mouse. You may find it odd to find out that mice sing. We do not hear them because the frequency of their voice is so high. In fact, scientists have known for some time that male mice make special sounds to females, but it has always been assumed that the sounds are produced instinctively and randomly, with little thought going into the process. But new research suggests otherwise. When male mice with different voices were put in a cage together, scientists found that they would gradually change their pitches to sound like one another. But when a female mouse was put in the cage with two males, one male would change his pitch to match the other. "It was usually the smaller animal changing the pitch to match the larger animal," professor Erich Jarvis, leader of the study, from Duke University, US, told BBC News. This ability, known as vocal learning, is rare in the natural world. It had been thought to be limited to some birds, such as parrots--as well as whales and dolphins. The latest findings challenge the long-held opinion that mice cannot learn to adapt their voices. Scientists also found the part of the brain that controls the mice's singing ability. In the experiment, they damaged the cells in this part of the mice's brain and found that the animals couldn't keep their songs in pitch or repeat them any more. This also happened when the mice became deaf. Jarvis said that this finding had changed his understanding of the way mice make sound. "In mice we find that the pathways that are at least modulating these vocalizations are in the forebrain, in places where you actually find them in humans," he said. "If we're not wrong, these findings will be a big boost to scientists studying diseases like autism and anxiety disorders." What do parrots, whales and dolphins have in common according to the passage?
[ "They are all animals well-known for their smart appearances.", "They are often chosen to carry out scientific experiments on.", "They all have the ability to learn to adapt their voices.", "Their numbers are quite limited in the natural world." ]
2C
college_biology
mmlu_labeled
Just the mention of the TOEFL, GRE and GAMT exams brings a thought of long hours of dull paper work. But that idea is becoming increasingly out of date. As planned, computerized tests will begin next year which will bring a series of changes from test psychology to scoring techniques. From computer - equipped rooms, examinees will answer the questions on a computer. If they are sure about their choices, they can pass to the next question by pressing the entry "next". Then another question will be randomly selected from a vast test item bank and appear on the screen. After answering all the questions, examinees can choose the entry "quit" if they are not satisfied with their performance, or "score" if they want to see the result. Scores will be calculated immediately and appear on the screen. By that point, student's marks are official--there is no going back. Since they greatly shorten the painful waiting process-which used to be two or three months, computerized tests have won worldwide popularity. Besides, there will be no rushing to the registration offices( )for these exams. Computerized tests will be given every workday in an exam center with all three kinds of tests being held in the same room. All test takers need to do is to call the exam center and book their seats for a particular day. In addition it will become technically possible to apply new testing procedures. In the past,each examinee had the same set of test items despite differences in their ability. Under a computerized system, however, if the computer judges an answer is right, a question of a relatively difficult nature will follow. But if an examinee continues to give wrong answers and is judged as un-qualified by the computer system, he will be automatically _ the chance to go further in the test. Under a computerized system, all of the following would be possible except that _ .
[ "different exams can be taken in the same room", "one doesn't need to rush to the registration officer for taking an exam", "it will be much easier to pass an examination", "one can take an exam almost at any time of the year" ]
2C
college_computer_science
mmlu_labeled
I was sleeping soundly last night when I was awakened by someone's groans .I listened , and heard it was from Sam,a student from Africa. I really wanted to go on sleeping, as I had insomnia and had just fallen asleep, but I couldn't because Sam groaned louder and louder,showing he was seriously ill. At that time , Robbie,a student from China , also got up to help. We found some pills,got some water , and helped him sit up to take them, hoping this would make his pain go down a little and get over the difficult time. If only daytime would come soon, everything would become easier. Things went contrary)to our wishes. Sam's condition developed from bad to worse. We telephoned the emergency service , and in no time an ambulance stopped in front of our gate. We helped the medical workers carry Sam to the vehicle,and then both Robbie and I got in and took Sam to the hospital. We helped him go through many medical examinations. After all kinds of tests,we were told that the final diagnosis was appendicitis . Luckily , Sam didn't need an operation because we brought him to the hospital in time. He got timely treatment. After Sam felt much better , we rushed back to prepare ourselves for the class. We were a little tired , but we had certainly done something good,something right. Why couldn't the writer go on sleeping that night?
[ "Because he was too excited that day.", "Because his roommates were watching football games on TV.", "Because one of his roommates was sick and groaning.", "Because he was sick." ]
3D
college_medicine
mmlu_labeled
After too long on the Net, even a phone call can be a shock. My boyfriend's Liverpudlian accent suddenly becomes too difficult to understand after his clear words on screen; a secretary's tone seems more rejecting than I'd imagined it would be. Time itself becomes fluid--hours become minutes, and alternately seconds stretch into days. Weekends, once a highlight of my week, are now just two ordinary days. For the last three years, since I stopped working as a producer for Charlie Rose, I have done much of my work as a tele-commuter. I submit articles and edit them by E-mail and communicate with colleagues on Internet mailing lists. My boyfriend lives in England; so much of our relationship is computer-mediated. If I desired, I could stay inside for weeks without wanting anything. I can order food, and manage my money, love and work. In fact, at times I have spent as long as three weeks alone at home, going out only to get mail and buy newspapers and groceries. I watched most of the blizzard of '96 on TV. But after a while, life itself begins to feel unreal. I start to feel as though I've merged with my machines, taking data in, spitting them back out, just another node on the Net. Others on line report the same symptoms. We start to strongly dislike the outside forms of socializing. It's like attending an A. A. meeting in a bar with everyone holding a half-sipped drink. We have become the Net opponents' worst nightmare. What first seemed like a luxury, crawling from bed to computer, not worrying about hair, and clothes and face, has become an avoidance ,a lack of discipline. And once you start replacing real human contact with cyber interaction, _ can be quite difficult. At times, I turn on the television and just leave it to chatter in the background, something that I'd never done previously. The voices of the programs relax me, but then I'm jarred by the commercials. I find myself sucked in by soap operas, or needing to keep up with the latest news and the weather. "Dateline", "Frontline" , "Nightline," CNN, every possible angle of every story over and over and over, even when they are of no possible use to me. Work moves from foreground to background. What is the author's attitude to the computer?
[ "At first she likes it but later becomes tired of it.", "She likes it because it is very convenient.", "She dislikes it because TV is more attractive.", "She likes it because it provides an imaginary world." ]
0A
computer_security
mmlu_labeled
"An apple a day keeps the doctor away." Similarly, if we drink a little more water ever day, we may find that we need to go to the doctor a lot less often. A healthy diet is made up of water and a great many different kinds of foods. We know that healthy foods like fruits, vegetables and fish, are important as they provide us with energy and fibre, without giving us too much fat and sugar. But why is water important? The human body needs water to survive. Water is important as it carries poisons and waste out of our bodies. However, doctors advise us to drink plenty of water, much more than the small amount we need to stay alive. Some doctors believe that water is important for our health in all kinds of ways. They believe that a great many illnesses and health problems stars as a result of dehydration--a lack of water in the body. Most people are dehydrated at least some of time, although they probably don't know it. It is surprising to learn that if we feel thirsty, we are already in the first stages of dehydration. In fact, we are advised to drink water before we feel thirsty. These doctors think that health problems such as headaches, high blood pressure and asthma could be helped if people drink more water. They also believe that drinking more water can help people who are overweight. Water contains no calories so it will not make us put on weight. If we drink water, we will probably drink less sugary soft drinks such as Coca-cola. Doctors also believe that drinking more water may stop people from overeating. They say that many people think that they are hungry when they are, in fact, thirsty. Doctors suggest, therefore, that we eat less food and drink more water. There are still many health problems that cannot be solved by drinking water, so we should not stop going to seeing the doctor completely. However, if we make a decision to drink water every day, we may find that we need to go to the doctor a lot less often. From the text, we know water can carry _ .
[ "energy and fibre in our bodies", "fruit, vegetables and fish in our bodies", "sugar and fat out of our bodies", "poisons and waste out of our bodies" ]
3D
nutrition
mmlu_labeled
Which part of a bicycle BEST moves in a circle?
[ "Seat", "Frame", "Foot pedal", "Kickstand" ]
2C
high_school_physics
mmlu_labeled
Which is a distinction between an epidemic and a pandemic?
[ "the symptoms of the disease", "the geographical area affected", "the species of organisms infected", "the season in which the disease spreads" ]
1B
college_medicine
mmlu_labeled
Many people will remember the flight of the space shuttle Challenger, in June, 1983. The achievement of Sally Ride, America's first woman astronaut to fly into space, made this flight especially memorable. Students from two Camden, New Jersey, high schools, however, are probably to remember Norma rather than Sally whenever they think about the flight. Norma didn't travel alone. She brought about 100 companions along with her. Norma was an ant, a queen ant who, with her subject, made up the first ant colony to travel into space. The ants were part of a science experiment designed by students to test the effects of weightlessness on insects. The equipment designed by the students for their colony functioned perfectly throughout the long space trip. The young scientists and their teachers were very sad to find that their insect astronauts had all died at some point before the container was returned to the school and opened. The problem didn't occur in space, but on the ground after challenger had landed. The container remained in the desert for nearly a week before the ant colony was moved. The hot, dry desert air dried out the colony's container and the ants died from lack of moisture . The project was tested success because it did provide useful information. Students will continue their efforts to pinpoint what went wrong. They will try to prevent the same difficulties from recurring on future missions. They don't want to be discouraged either by the demise of the ants or by the $10,000 shuttle fare they will have to pay to send the next colony of ants into space. Ks5u The ants were not able to live because _ .
[ "no one fed them in space", "they dried out in the desert", "weightlessness damaged them", "space caused too much pain" ]
1B
college_biology
mmlu_labeled
University Room Regulations Approved and Prohibited Items The following items are approved for use in residential rooms: electric blankets, hair dryers, personal computers, radios, televisions and DVD players. Items that are not allowed in student rooms include: candles, ceiling fans, fireworks, waterbeds, sun lamps and wireless routers. Please note that any prohibited items will be taken away by the Office of Residence Life. Access to Residential Rooms Students are provided with a combination for their room door locks upon check-in. Do not share your room door lock combination with anyone. The Office of Residence Life may change the door lock combination at any time at the expense of the resident if it is found that the student has shared the combination with others. The fee is $25 to change a room combination. Cooking Policy Students living in buildings that have kitchens are only permitted to cook in the kitchen. Students must clean up after cooking. This is not the responsibility of housekeeping staff. Kitchens that are not kept clean may be closed for use. With the exception of using a small microwave oven to heat food, students are not permitted to cook in their rooms. Pet Policy No pets except fish are permitted in student rooms. Students who are found with pets, whether visiting or owned by the student, are subject to an initial fine of $100 and a continuing fine of $50 a day per pet. Students receive written notice when the fine goes into effect. If, one week from the date of written notice, the pet is not removed, the student is referred to the Student Court. Quiet Hours Residential buildings must maintain an atmosphere that supports the academic mission of the University. Minimum quiet hours in all campus residences are 11:00 pm to 8:00 am Sunday through Thursday. Quiet hours on Friday and Saturday nights are 1:00 am to 8:00 am. Students who violate quiet hours are subject to a fine of $25. When can students enjoy a party in residences?
[ "7:00 am, Sunday.", "7:30 am, Thursday.", "11:30 pm, Monday.", "00:30 am, Saturday." ]
3D
college_medicine
mmlu_labeled
Select the living thing.
[ "soccer ball", "paper clip", "crayon", "crab" ]
3D
natural science
scienceqa
On February 21, a student observes that the Moon cannot be seen in the clear night sky. On what date will the student not be able to see the Moon again in the clear night sky?
[ "February 28", "March 7", "March 14", "March 21" ]
3D
astronomy
mmlu_labeled
We are all busy talking about and using the Internet. But how many of us know the history of the Internet? Many people are surprised when they find that the Internet was set up in the 1960s. At that time, computers were large and expensive. Computer networks didn't work well. If one computer in the network broke down, then the whole network stopped. So a new network system had to be set up. It should be good enough to be used by many different computers. If part of the network was not working, information could be sent through another part. In this way computer network system would keep on working all the time . At first the Internet was only used by the government , but in the early 1970s; universities, hospitals and banks were allowed to use it, too. However, computers were still very expensive and yet Internet was difficult to use. By the start of the 1990s, computers became cheaper and easier to use. Scientists had also developed software that made "surfing" the Internet easier. Today it is easy to get online and it is said that millions of people use the Internet every day. Sending e-mail is more and more popular among young people. The Internet has become one of the most important parts of people s life. What would happen when one computer in the network broke down after the new network system was set up?
[ "The other computers would wait.", "The other computers would still work.", "Some of the others still worked.", "The other computers wouldn't work." ]
3D
college_computer_science
mmlu_labeled
Naturally occurring variations within a species are mainly the result of mutations and
[ "sexual reproduction", "dynamic equilibrium", "metabolism", "camouflage" ]
0A
college_biology
mmlu_labeled
Like distance runners on a measured course,all of us will move through time in a roughly predictable pattern. In the first stage of our lives,we develop and grow, reaching toward the top of physical vitality . After we grow up,however, the body begins a process of gradually wearing out. A new awareness of physical fitness may help lengthen our years of health and vitality,yet nothing we do will work to stop the unavoidable force of aging. Most of the changes of aging take place deep inside the body.The lungs become less able to take in oxygen.Powerful muscles gradually lose their strength.The heart loses power and pumps less blood.Bones grow easier to break. Finally, we meet a stress,a stress that is greater than our physical resistance.Often,it is only a minor accident or chance infection(a disease caused by virus),but this time, _ brings life to an end. In 1932,a classic experiment nearly doubled the lifetime of rats,simply by cutting back the calories in their diet The reason for the effect was then unknown. Today, at the University of California at Berkley, Dr.Paul Seagle has also greatly lengthened the normal lifetime of rats.The result was achieved through a special protein limited diet,which had a great effect on the chemistry of the brain.Seagle showed that within the brain,specific chemicals control many of the signals that influence aging.By changing that chemical balance,the clock of aging can be reset. For the first time, the mystery of why we age is being seriously challenged.Scientists in many fields are now making striking and far-reaching discoveries. An average lifetime lasts 75 years,yet in each of us lies a potential for a longer life.If we could keep the vitality and resistance to disease that we have at age twenty, we would live for 800 years. How did Dr.Paul Seagle lengthen the lifetime of rats in his experiment?
[ "By keeping their physical fitness.", "By cutting the calories in their diet.", "By resetting their clock of aging.", "By limiting the protein in their diet." ]
3D
college_medicine
mmlu_labeled
Thirteen vehicles lined up last March to race across the Mojave Desert , seeking a million in prize money . To win , they had to finish the 142-mile race in less than 10 hours . Teams and watchers knew there might be no winner at all , because these vehicles were missinge a key part drivers . DARPA , the Defense Advanced Research Projects Agency , organized the race as part of a push to develop robotic vehicles for future battlefields . But the Grand Challenge , as it was called , just proved how difficult it is to get a car to speed across an unfamiliar desert without human guidance . One had its brake lock up in the starting area . Another began by throwing itself onto a wall . Another got tied up by bushes near the road after 1.9 miles . One turned upside down . One took off in entirely the wrong direction and had to be disabled by remote control . One went a little more than a mile and rushed into a fence ; another managed to go for six miles but stuck on a rock . The "winner," if there was any , reached 7.8 miles before it ran into a long , narrow hole , and the front wheels caught on fire . "You get a lot of respect for natural abilities of the living things," says Reinhold Behringer , who helped design two of the car-size vehicles for a company called Sci-Autonics . "Even ants can do all these tasks effortlessly . It's very hard for us to put these abilities into our machines ." The robotic vehicles , though with necessary modern equipment such as advanced computers and GPS guidance , had trouble figuring out fast enough the blocks ahead that a two-year-old human recognizes immediately , Sure , that very young child, who has just only learned to walk , may not think to wipe apple juice off her face , but she already knows that when there's a cookie in the kitchen she has to climb up the table , and that when she gets to the cookie it will taste good . She is more advanced , even months old , than any machine humans have designed . DARPA organized the race in order to_.
[ "raise money for producing more robotic vehicles", "push the development of vehicle industry", "train more people to drive in the desert", "improve the vehicles for future wars" ]
3D
college_computer_science
mmlu_labeled
It is not just humans that get stuck in their ways. Scientists have discovered that old bees have trouble finding their way to new hives as their learning behavior becomes increasingly inflexible. Bees are typically impressive navigators, able to wind their way home through complex landscapes after visits to flowers far removed from their nests. But researchers from Arizona State University and the Norwegian University of Life Sciences found that aging damages the bees' ability to extinguish the memory of an unsuitable nest site even after the group has settled in a new home. To test how old bees adapt to a changed home location, researchers trained bees to a new nest box while their former nest was closed off. Groups composed of mature and old bees were given several days in which to learn the new home location and to extinguish the bees' memory of their unusable former nest box. The scientists then tore down the bees' new home and forced groups of mixed-age bees to choose between three alternative nest locations, including the former nest box. Old bees began flying toward the former nest site, despite the experience that should have told them that it was unusable. "Although many old bees fail in learning tasks, we also discovered that a few still perform with excellence," explains Daniel Minch, lead author of the study and a senior life sciences researcher in Norway. The scientists believe that their findings with bees offer a new means to model and understand the variability found in brain function between individuals, where some individuals' memories remain complete, while others' learning behavior becomes inflexible with age. Judging from the test ,which of the following is true?
[ "All old bees began flying toward the former nest site.", "Bees are more expert in finding a new home with age.", "The test result offers a new means to understand the variability in brain function between individuals.", "The bees' ability to extinguish the memory of an unusable former nest site was damaged by the test." ]
2C
college_biology
mmlu_labeled
The NSA and GCHQ are tapping popular smart phone apps such as Angry Birds to gather the enormous amounts of very personal data those bits of software collect--including age, gender, marital status, income, education level and more, according to new reports from the New York Times and The Guardian. Citing secret documents provided by Edward Snowden, former NSA staff, the reports detail efforts to gain data collection from cell phone carriers and smart phones by tapping into "leaky" apps themselves. Both spy agencies showed a particular interest in Google Maps, which is accurate to within a few yards or better in some locations and would clearly pass along data about the area where phone owner is. "It effectively means that anyone using Google Maps on a smartphone is working in support of a GCHQ system," reads a secret 2008 report by the NSA's sister spy agency, according to the New York Times. More surprising is the wide range of apps that the agencies search for data, including innocent-seeming apps such as Angry Birds. One document in particular from GCHQ listed what information can be found from which apps, mentioning Android apps but suggesting the same data was available from the iPhone platform. Angry Birds maker Rovio Entertainment of Finland said it had no knowledge of any NSA or GCHQ programs for tapping into its users' data. "Rovio doesn't have any previous knowledge of this matter, and have not been aware of such activity in 3rd party advertising networks," said Saara Bergstrom. "Nor do we have any involvement with the organizations you mentioned." Mobile photos uploaded to social media sites like Facebook and Twitter appear to be a particularly rich source of information for the spy agencies as well. Metadata in the photos is briefly available. The NSA and GCHQ are able to tap into that metadata to collect a wealth of key data points about a person's life. "NSA does not profile everyday Americans as it carries out its foreign intelligence mission," the agency told the Times in response to questions about the program. During a Monday press conference, White House press secretary Jay Carney stressed that same position. "As the president said in his Jan. 17 speech, to the extent data is collected by the NSA, through whatever means, we are not interested in the communications of people who are not valid foreign intelligence targets and we are not after the information of ordinary Americans," he said. What did Jay Carney's words imply?
[ "NSA didn't gather any worthy information from Americans.", "NSA would stop its foreign intelligence mission in the future.", "NSA and White House shared different attitude towards the affair.", "NSA collected information with the permission of White House" ]
3D
computer_security
mmlu_labeled
The world's largest solar thermal plant is set to begin producing power in the United States by the end of the year. Wind and energy from the sun are generally considered clean, unlike energy from coal-burning power stations. However, environmentalists now worry that too much solar power development could harm the local environment. A California company -- BrightSource Energy is building a huge solar power plant in the Mojave desert, about 60 kilometers southwest of Las Vegas, Nevada. The plant is known as the Ivanpah Solar Electric Generating System. Joe Desmond works for the company. "This is actually one of the highest concentrations of sunlight in the world, out here in Ivanpah." explained Desmond. BrightSource Energy will deploy 170,000 specially designed mirrors to direct solar energy towards boilers on top of three power towers. The steam produced in the boilers will drive turbine to make electricity. Joe Desmond says the steam can reach temperatures of more than 260 degrees Celsius. "We can store the sun's thermal energy in the form of molten salt, so we can produce electricity even when the sun goes down. There is a lot of interest in concentrating solar power around the globe in environmnents where you have lots of sun, such as China, South Africa, the Middle East, North Africa, explained Desmond. Environmentalists generally support the idea of solar power, however, many are concerned about the effect of power plants on sensitive environment. Lisa Belenky is a lawyer with the Center for Biological Diversity, a private group. She says environmentalists are specifically worried about the effect of the Ivanpah Solar Project on the sensitive plant and animal life in that part of Mojave desert. "Even though the desert seems big, when you start cutting it up, it can really affect how the species and the animals and the plants are able to survive in the long run,"said Lisa Belenky. BrightSource Energy has already spent more than $ 50 million to move endangered desert tortoises away from the power plant. but Lisa Belenky says this is not the answer. "We should be reusing areas that have a1ready been disturbed, like old mining sites, for example...either on homes, on businesses, parking lots." said Belenky. There have also been reports of birds dying at the Ivanpah Plant and others like it. Some birds die after colliding with solar equipment which the animals mistake for water. Other birds were killed or suffered burns after flying through the intense heat at the solar thermal plant. As solar projects increase, environmentalists and developers are considering what to do to reduce bird death. Why can the plant make electricity at night?
[ "Because the sun's thermal energy can be stored in the form of steam.", "Because the sun's thermal energy can be stored in the form of molten salt.", "Because the sun'ss thermal energy can be stored through mirrors", "Because the sun's thermal energy can be stored in the boilers." ]
1B
electrical_engineering
mmlu_labeled
Is the following trait inherited or acquired? Lee has a scar on his left ankle.
[ "acquired", "inherited" ]
0A
natural science
scienceqa
The leftovers in the fridge smelled a little unusual, but you ate them. You were so hungry that you didn't even heat them up. Later, you started to feel sick. Powerful waves of pain rumbled through your stomach. They went away, but not for long, then you even threw up. That sounds like the case of food poisoning. No one put poison in your food, but bacteria probably grew in the food in the fridge and those bacteria made you sick. Food poisoning can be mild and last just a short time or can be more serious. Food poisoning comes from eating foods that contain germs like bad bacteria, which are poisonous substances. Bacteria are all around us, so mild cases of food poisoning are common. You may have had mild food poisoning with diarrhea and an upset stomach --- but your mom or dad just called it a stomach bug or stomach virus. You might think the solution is to get rid of all the bacteria, but it isn't possible and you wouldn't want to do it, even if you could. Bacteria are all around us, including food, and sometimes they can be good for you. It's confusing, but one thing is for sure ---- You can, however, learn how to avoid those bad germs in food. Foods from animals, raw foods, and unwashed vegetables all can contain germs that cause food poisoning. The most likely source is food from animals, eggs, milk, and shellfish. To avoid food poisoning, people need to prepare, cook, and store foods properly. According to the passage, if you want to avoid food poisoning, you'd better _ .
[ "wash the foods from the fridge for a long time", "store the foods which do not have bacteria in the fridge", "prepare enough foods to avoid bad germs in foods", "fully heat up the foods from the fridge even if they aren't rotten" ]
3D
nutrition
mmlu_labeled
Everyone knows that regular bedtimes are important, especially for children. But a research by Yvonne Kelly of University College, London, shows that daughters, it seems, do benefit from regular bedtimes. Sons do not. Dr Kelly and a team of colleagues examined the bedtimes and cognitive abilities of 11,178 children born in Britain between September 2000 and January 2002, who took part in a research project called the Millennium Cohort Study. The bedtime information they used was collected during four visits interviewers made to the homes of those participating in the study. These happened when the children were nine months, three years, five years and seven years of age. Besides asking whether the children had set bedtimes on weekdays and if they always, usually, sometimes or never made them, interviewers collected information about family routines, economic circumstances and other matters--including whether children were read to before they went to sleep and whether they had a television in their bedroom. The children in question were also asked, at the ages of three, five and seven, to take standardised reading, mathematical tests, from which their IQs could be tested. Dr Kelly's report shows that by the time children had reached the age of seven, not having had a regular bedtime did seem to affect their cognition. But that was true only if they were female. On the IQ scale, whose average value is 100 points, girls who had had regular bedtimes scored between eight and nine points more than those who did not. Boys were not completely unaffected. Irregular bedtimes left their IQs about six points below those of their contemporaries at the age of three. But the distinction disappeared by the time they were seven. This difference between the sexes is puzzling. "I did not expect it, and more research is necessary." said Dr Kelly. Where does this text probably come from?
[ "A science fiction.", "Children's literature.", "An advertisement.", "A science report." ]
3D
college_medicine
mmlu_labeled
Just two years before her 100thbirthday, Sensei Keiko Fukuda has become the first woman to achieve a tenth-degree black belt --- the highest rank in the martial art and combat sport judo . Fukuda is now one of only four living people who've earned the tenth-degree (or dan) black belt. Throughout history, only sixteen people have ever achieved this honor. Fukuda began practicing judo in 1935 and is the only surviving student of its founder, Kano Jiguro. Urged by her teacher, she learned English to help spread judo internationally. During a time when getting married, building a family, and becoming a housewife was the standard, Fukuda went against tradition, _ marriage to pursue the martial art. "All I did was judo ... this was my marriage," Fukuda reflected tearfully to the San Francisco Chronicle. "This is when my life destiny was set. I just never imagined how long this road would be." She described the Jiguro's school, known as the Kodokan, as "old-fashioned and sexist about belts and ranks". In fact, an order that prevented women from achieving any higher than a fifth-degree black belt kept Fukuda at that level for thirty years. She was finally promoted to sixth dan in 1972 when a woman's division was created. Fukuda said she approached judo and her life with the intention to "be gentle, kind and beautiful, yet firm and strong, both mentally and physically". Fukuda said this kind of beauty is decidedly not external . " A kind soul is inner beauty," she explained to the paper. "I believe this is true beauty ... All my life this has been my dream." Dream realized, the 98-year-old Sensei Keiko Fukuda continues to teach judo three times a week at a woman's judo. Why did Fukuda remain at fifth-degree black belt for so long a time?
[ "It was hard for her to improve her level.", "She suffered from a foolish rule.", "Her family life took up too much of her time.", "She didn't want to improve her level." ]
1B
human_sexuality
mmlu_labeled
A sample in a cylindrical container has a cylindrical shape and a fixed volume. The state of matter of the sample
[ "must be solid.", "could be either solid or liquid.", "must be liquid.", "could be either liquid or gas." ]
1B
college_chemistry
mmlu_labeled
There are new and exciting ways to use the Internet to learn English while you are on - line. The Internet uses a lot of multimedia elements ,like words, sounds, pictures, animations and video. This is perfect for studying a language because you've got to see, hear, and repeat things as much as you like. Learning over the Internet is also funny because you can be a part of conversations happening all around the globe ! Special Internet sites are designed for people learning English, just like yourself. These sites use multimedia to help you learn and are a great way to meet other people around the world. This is Cyber English. On the Internet, English is the major language. As a result, it is now more important than ever to be able to understand English when you serve the web. It is not always easy,though. The English can be difficult or have a lot of cultural information that you have never seen ! One site for students studying English and their teachers is Englishtown. At http://www. english- town. com, you will find a community ( group) of people interested in learning English. There are several buildings in the virtual town where you can play games, chat with friends, ask and get answers about cultural questions, and find an international penfriend who shares your interests. There are extra resources to help you learn,such as multimedia CD - ROM and books for language learning and translation. You can also have daily and monthly English lessons delivered to your own e - mail address. There is even an on - line school where you can take English classes over Lhe Internet. Englishtown is the perfect place to prefect for a trip to England or the United States ! Would you like to become part of a virtual community of English sfH-aktrs : Surfing the web is not only funny but can also help improve your English ! Try out >ome of tlv, web sites listed below and see how students all over the world are learning English on line. Which of the following is NOT true according to the passage?
[ "English is the only useful language on the Internet.", "The Internet can provide people with the cultural information they need.", "At http://www. Englishtown. com, people can study and play.", "One can find a pen-friend on http://www.Englishtown. com." ]
0A
college_computer_science
mmlu_labeled
8-year-old Mario spent one day selling lemonade in New Jersey. But he didn't do it for spending money. "The people in the hospital need more medicine," Mario said. Mario's lemonade stand raised money after a group called Alex's Lemonade Stand, which is an organization that raises money for research on cancers that affect kids.Their research might one day lead to a cure.The organization is named for Alexandra Scott, a girl who died of cancer eight years ago when she was eight years old.Alex' s Lemonade Stand actually began four years earlier before she died.That's when she announced that she wanted to sell lemonade to raise money for a cancer cure for all kids. This year, thousands of kids across the country are selling lemonade to raise money for Alex's foundation.In Maryland, a group of kids at the Children's Guild held a fund - raiser for Alex in April. And in Florida, Harrison began raise money for Alex's Lemonade Stand last year, when he was seven.This year, he raised more than $ 500 dollars.Harrison hoped it could help kids by scientists finding a cure.He also dreamed of finding a cure himself."When I grow up, I'm going to invent these little 'nano-bots' that can swallow cancer.They can fight cancer for you with their little mini - lasers and stuff," Harrison said. "To see how that one simple idea grew into this national foundation, all of these supporters coming out in Alex's memory , it' s really special for me.It' s against my expectation,"said Liz Scott, Alex' s mother. What made Mario's lemonade stand even more special and amazing than most is that he, too, has cancer--six brain tumors.But Mario is not giving up.And he is determined to help other kids like him--in memory of Alex." He lost a lot of friends who were in the hospital,"said Mario's mom, Anna."And he wants to be sure that he doesn't lose anymore." What' s the passage mainly about?
[ "Kids have a good time in selling lemonade.", "Kids are determined to help others with cancer.", "Kids sell lemonade to raise money to fight cancer.", "Kids with cancer work hard to show they are special." ]
2C
college_medicine
mmlu_labeled
LONDON (Reuters) -- Children are dying for lack of drugs tailored to their needs, according to the World Health Organization (WHO), which launched a global campaign on Thursday to promote more research into child medicine. More than half of the drugs currently used to treat children in the industrialized world have not been specifically tested on youngsters. The problem is even worse in developing countries where price remains a major barrier and 6 million children die each year from treatable conditions. In the case of HIV/AIDS, the few existing pediatric therapies developed for children generally cost three times more than adult ones. As a result, clinicians lack clear guidelines on the best drug to use and often have to guess at the correct dose. Fortunately, the WHO has drawn up the first international List of Essential Medicines for Children, containing 206 products considered safe for children. "But a lot remains to be done. There are priority medicines that have not been adapted for children's use or are not available when needed," said Dr Hans, the U.N. agency's director of medicines policy and standards. Medicines that need to be adapted to children's needs include many antibiotics, pain drugs as well as combination pills for HIV/AIDS, tuberculosis and malaria. The agency is building an Internet entrance linking to clinical trials carried out in children and will launch a Web site with the information early next year. Testing medicines on children has always been a controversial issue, since good ethical practice requires informed agreement from people participating in clinical trials, which is difficult to obtain in the case of children. As a result, research-based drug companies have been _ of developing child-friendly medicines and general companies have been slow to produce them at lower cost. In an attempt to deal with the issue, both Europe and the United States now have special rules offering extended patent protection for drugs that have been tested on children. Which of the following medicine is not needed to be adapted to children's need according to the passage?
[ "Pain killers.", "Tuberculosis.", "AID pills.", "Flu pills." ]
3D
college_medicine
mmlu_labeled
Sooj learned that whales use vocalization to navigate and to communicate with other whales. Some scientists think that noise pollution in whale habitats may harm whale populations. What would be the most likely effect of noise pollution on whales?
[ "alteration of whale genetic material", "reversed flow of energy through whale habitats", "reduced populations of food organisms in whale habitats", "separation of whale family groups" ]
3D
natural_science
ai2_arc_challenge
Which change better matches the sentence? Melted rock comes out from below Earth's surface.
[ "wildfire", "volcanic eruption" ]
1B
natural science
scienceqa
Reading is good for you. There is increasing evidence to show that reading isn't merely a way of improving literacy and knowledge, but that it might actually be good for one's mental and physical health, too. In the age of Twitter and short attention spans, reading novels, which requires intense concentration over a long period of time, could be the antidote . Neuroscientists Baroness Susan Greenfield says that reading helps to lengthen attention spans in children and improve their ability to think clearly. "Stories have a structure that encourages our brain to think in sequence, to link cause, effect and significance," she says "It is essential to learn this skill as a small child." "In a computer game, you might rescue a princess, but you don't care about her, you just want to win," she explains, "But a princess in a book has a past, present and future. You can relate to her. You see the world through her eyes" According to professor John Stein, Oxford university, reading is far from a passive activity. "Reading exercises the whole brain," he explains. " When we get lost in a good book, we are doing more than following a story, Imaging what is happening is as good as activating the brain as doing it. In other words, our brains simulate real experiences, and it is just as if we were experiencing them ourselves. This doesn't happen when we are watching a TV or playing computer games." Getting stuck in a good novel appears to be good for one's mental health. Reading helps one not only fights loneliness, but also forget one's own problems for a while. Researchers found that just six minutes of reading could reduce stress levels by more than two-thirds, more than listening to music or going out for a walk. The concentration required to read distracts the mind, easing muscle's tension and slowing the heart rate. Reading may be good for physical health, too, by preventing brain aging and disease. What would be the best title for the passage?
[ "Reading Books Helps Keep Your Healthy", "The Structure of a Book", "The Brain Activities While Reading", "How to Teach Children to Read" ]
0A
nutrition
mmlu_labeled
Lidong came on November 8 this year. It is the Chinese word for one of the 24 solar terms . It means the beginning of winter. As the weather gets colder and there is less sunlight, people are more likely to get sick. Adults in the US usually have two to four colds each year. Young children suffer from six to eight colds per year, especially in winter months, according to the American Lung Association. One of the best ways to keep healthy during winter is to stay warm. There are many ways to stay warm. A living room should be around 18-21 C, and you can also use a hot water bottle or at least 16 C. blanket to keep warm while in bed. Getting plenty of exercise is always a good idea. Take a walk on a sunny afternoon, do a long distance run or skip rope. These things keep your blood moving and your metabolism fired up. Food gives us energy and helps to warm us from the inside. High-protein foods, like fish and meat, provide a lot of energy. Add some things to your winter dishes, such as ginger, pepper and garlic. These things can make you warm. A winter coat warms you up from the outside. Add several layers of thin clothing, for example, a shirt and a thin sweater, to stay even warmer. Clothes made from wool are usually very warm. How to make winter days colorful? Is it too cold to play outside? Don't worry. Here are some tips for having fun at home. Give it a try! # Enjoy a movie with your parents. There are a lot of choices, such as Spy Kids. You can also talk about the movie with your parents after it's over. # Cook a meal with your parents. You can cook some simple dishes, such as scrambled eggs with tomato. You may need your mother's help for the first time. # Clean your bedroom. You need to sweep the floor, tidy your desk and make your bed. By doing this, you really help your mother a lot. # Read your favorite book. Reading is not only helpful for your writing ability, but can also help to build your character. The writer writes the passage by _ .
[ "doing research", "making a survey", "giving examples", "having interviews" ]
2C
nutrition
mmlu_labeled
Compared to the amount of hereditary information in a human body cell, how much hereditary information is contained in a human sex cell?
[ "A", "B", "C", "D" ]
1B
natural_science
ai2_arc_challenge
What information supports the conclusion that Tommy inherited this trait?
[ "Tommy and his father both have short hair.", "Tommy's parents were born with straight hair. They passed down this trait to Tommy." ]
1B
natural science
scienceqa
Dogs have an understanding of fair play and become angry if they feel that another dog is getting a better deal, a new study has found. The study looked at how dogs react when a companion is rewarded for the same trick in an unequal way. Friederike Range, a researcher at the University of Vienna in Austria, and her colleagues did a series of experiments with dogs who knew how to respond to the command "give the paw ". The dogs were normally happy to repeatedly give the paw, whether they got a reward or not. But that changed if they saw that another dog was being rewarded with a piece of food, while they received nothing. "We found that the dogs hesitated significantly longer when obeying the command to give the paw," the researchers write. The unrewarded dogs eventually stopped cooperating. Scientists have long known that humans pay close attention to inequity. But researchers always assumed that animals didn't share the trait. "The argument was that this is a uniquely human phenomenon," says Frans de Waal, a professor of psychology at Emory University in Atlanta. That changed in 2003 when he and a colleague did a study on monkeys. The monkeys had to hand a small rock to researchers to get a piece of cucumber in return. They were happy to do this. But if they saw that another monkey was getting a more delicious reward, a grape, for doing the same job, they would throw away the food and rock, and at some point just stopped performing. In that experiment, the monkeys considered the fairness of two different types of payment. But when Range and her colleagues did a similar study with their trained dogs, testing to see if dogs would become upset if they only got dark bread when other dogs received sausage, they found that as long as the dogs got some kind of food payment, even if it wasn't the most delicious kind, the animals would play along. Some monkeys in the research become angry because they found another monkey _ .
[ "was given less work.", "was given more food.", "was given the same type of food.", "was given more delicious food." ]
3D
human_sexuality
mmlu_labeled
By attaching to sharks, remora fish eat the scraps of food left behind when the sharks feed. If remoras were not able to attach to sharks, they would most likely
[ "attach to boats.", "not be able to survive.", "find another source of food.", "not need to eat anymore." ]
1B
college_biology
mmlu_labeled
Dear Carol, I wear braces and I know I look just terrible in them. Is there anything I can do to improve my appearance until they come off? Connie N. Philadelphia, PA Dear Connie, Start by thinking about how good you are going to look when your braces come off. If you are negative about your appearance, people will pick that up right away about you. In the meantime there are several things that you can do to lift your spirits: Change your hairstyle. Be sure to get a good cut so that the shape of your hair will be flattering to your face and also good for your type of hair (fine, thick, straight, curly, etc.) Choose a hairstyle that draws attention away from your face. Hair pulled back into a pony-tail or into a ball on top or slightly off-center can be attractive and practical for this purpose. Keep skin clean. If you choose to wear makeup , it should look natural. Blusher and lip gloss in light tones of peach or pink are best. Be well-groomed . Neatness really _ . People see a total look about you before they ever become aware of your braces. And first impressions are lasting ones! Why did Connie write to Carol?
[ "Because she really cared about her clothes.", "Because she cared much about her appearance.", "Because her teeth were not good.", "Because she didn't know how to make up." ]
1B
human_sexuality
mmlu_labeled
Social networking isn't only for the under 40s. More than 25 percent of Americans 50 years and older stay connected using sites such as Facebook, MySpace and Twitter, according to new research. "The latest data tells us that more and more social networking is becoming a part of everyday life for Americans 50 plus," said Kevin Donnellan, the chief communications officer at AARP, which released the report. Nearly a quarter of older Americans are on Facebook and 73 percent said they use it to stay in touch with relatives, but not just their children and grandchildren. "They are using the Internet to keep up with the world and the people who are important to them," said Jean Koppen, the author of the report. She added that older adults are also on Facebook to stay connected, not only with their family, but with their friends and those in the same age group. Almost 50 percent of older adults were introduced to the social networking sites by a family member, mainly a child or grandchild. "Just under one-fifth of adults aged 50 and older say they do not use the Internet," according to the report. The findings are based on a telephone survey of 1,863 adults. In addition to keeping up on Facebook and Twitter older adults are aware of the latest technology. Eighty-three percent had heard about the Apple iPad and 11 percent intended to buy one. Despite the popularity of the Internet among the over 50s, they still mostly go to print newspapers and magazines for news. Only one percent said they followed blogs. From the text, it can be concluded that _ .
[ "Kevin Donnellan approves of this change among older Americans", "many older Americans are open-minded about new developments", "Young people should introduce their elders to new technology", "In a high tech age it is difficult to avoid social networking" ]
1B
computer_security
mmlu_labeled
On sunny days we can see the sun in the sky. It looks like a hot and bright plate. But it is a ball. It is much bigger and hotter than any fire. And it is much brighter than all the lights in the world. The sun is a star but it looks much bigger and brighter than any other star. Many stars are much bigger than the sun. The sun is much nearer to us, so it looks much bigger. At night we can see the moon and many stars. The moon is a round ball. It is much smaller than the stars. The stars are much farther away from us; so thy look much smaller than the moon. The moon has no light of its own. When the sun shines on it, it looks bright. When the moon is full. It looks very beautiful. Which one is not right?
[ "The sun looks like a bright plate.", "Many stars are bigger than the sun.", "The moon is smaller than the stars.", "The moon has light of it's own." ]
3D
astronomy
mmlu_labeled
A student riding a bicycle observes that it moves faster on a smooth road than on a rough road. This happens because the smooth road has
[ "less gravity", "more gravity", "less friction", "more friction" ]
2C
college_physics
mmlu_labeled
I go to work at ten o'clock every night. When I ride a bike to my office, I talk with other doctors. Then I go to help all the sick people. Some nights are very quiet, but some nights are really busy, especially on weekends. On busy nights, I even have to help other doctors. I can go home at six o'clock every morning. On my way home, I can see only a few people on the street. When I get home, I eat breakfast with my family first. Then, I read newspapers. That's my habit. I can get some news from the newspapers. After that, I go to bed. My job isn't easy, but I like _ a lot because I can help people. ,. Which of the following is Not true?
[ "Every weekend, the writer is at home with his family", "It's the writer's habit to read newspapers in the morning.", "The writer goes to work at night and comes back home in the early morning.", "The writer can see only a few people on the street on his way home from work." ]
0A
professional_medicine
mmlu_labeled
Using only these supplies, which question can Aubrey investigate with an experiment?
[ "Does the basketball bounce higher on a lawn or on a dirt path?", "Do larger basketballs bounce higher than smaller basketballs on a brick patio?", "Does the basketball bounce higher on gravel or on grass?" ]
2C
natural science
scienceqa
After the Spring Festival, I found some of my mom's daily habits have changed. Her cooking way was different. Vegetables that had been cooked crisply became very tender and soft. Fish that had been fried became soup. Her old shredded potato turned into diced potato... Feeling strange, dad and I asked Mom the reason for the change. But all she said was, "Just trying a different taste". Then she was silent. But it wasn't just her cooking way. Mom also change other habits. After dinner, instead of watching films on TV as usual, she would put on her newly-bought sports clothes and asked Dad to go out for a walk. After they came back home, mom would lose herself in magazines or newspapers about healthcare. Mom almost never gets sick. Why was she suddenly interested in medicine? I couldn't understand her "abnormal" behavior. Then one day I came across her micro blog . "While visiting my parents during the Spring Festival, I suddenly realized that they are in their 70s now," my mom had written. "They move slowly and it is hard for them to do the housework. I should visit them more often... "Some cooking should be changed to keep them healthy. They like fish soup, diced potato, tender and soft vegetables... "I must also keep fit by doing physical exercise. If my parents are too weak to move around, I can be strong enough to take care of them. When I am old, my son can also pay less attention to taking care of me..." When I read this, I felt very sorry. I used to complain that Mom didn't understand me and couldn't give me everything I wanted. I always thought there was a wide gap between us. But now I completely understand her. How great she is! She always thinks of others before herself. Everything she does is to help the people she loves live better lives. How unselfish her love is! When did mum change her habits?
[ "After her parents were ill.", "After the Spring Festival.", "When mum was 70 years old.", "After mom started her micro blog." ]
1B
human_sexuality
mmlu_labeled
How Does Your Body Keep the Same Temperature? The temperature of your body should always be the same if you are fine, no matter whether the weather is hot or cold. That is why the doctor tests your temperature with a thermometer when you are sick. Normally, your body temperature is ninety-eight point six degrees Fahrenheit . If it is higher than that, it is a sure sign that something is wrong with your body. Your body keeps the same temperature all the time, because it balances the heat it produces and the heat it gives off. It is always burning up food and producing heat. It can produce heat faster when the body needs or give off heat faster when the body becomes too warm. Let's see how this works. The heat of your body is given off chiefly through the skin. When you feel cold, your skin is tight and shows "goose flesh". When you feel chilly , you must jump around to keep warm. Then your muscles begin to work, burn up fuel and produce more heat. It is not pleasant to shiver so you usually prefer warming up by taking exercise, or put on more clothes to keep warm. When you get warm, the skin is loose and soft. It is so supplied with blood that heat is given off rapidly. If you get too warm, you begin to sweat and more body heat is used in evaporating the moisture in your body. In warm weather or warm rooms, you wear less clothing, so that heat can be given off freely. You prefer less exercise because your body is warm enough, and the extra heat produced by taking too much exercise makes you uncomfortable. Now you see why you feel differently in different kinds of weather. In summer, when it is hot, you feel tired and lazy. You do not care to work or play, but enjoy lying down and doing nothing. When you get out of doors in winter, the cold air makes you feel lively. You want to run and play. How does the body keep the same temperature all the time?
[ "It balances the heat it gets and loses.", "It is always producing heat from food.", "It gives off the heat that the body produces.", "It stops producing heat when it needs to." ]
0A
anatomy
mmlu_labeled
Their beautiful call suggests the arrival of spring,but the routes taken by cuckoos during their annual migration have remained a mystery.Now,though,scientists from the British Trust for Omithology(BTO)have revealed the details of their remarkable 10,000-mile journey,with the help of tracking devices. Five male birds were caught in Norfolk last May and fitted with satellite-tagged "backpacks'' before being released.The scientists then monitored their progress over 12 months as they flew to Africa in the autumn,and returned in the spring. The project was carried out to discover why every year fewer of the birds return to Britain.Between 1995 and 2010,the population of cuckoos spending sumnler here fell by almost half,and the number is continuing to decline.Previously,the lack of information about the cuckoos'long migration has hamoered the understanding of how to help conserve the birds. Earlier this year,it was reported that cuckoos arrived in the UK much earlier than normal.Their call was recorded by ornithologists as early as February,a month ahead of their usual arrival. Like all migrating animals,cuckoos respond to the changing seasons.They depend on lush plants to provide the fruit and food for insects that they feed on.This reliance on seasonal patternsmeans that a changing climate could make an already challenging journey impossible for them. When do cuckoos usually arrive in Britain?
[ "In January.", "InFebruary.", "InMarch.", "In April." ]
2C
college_biology
mmlu_labeled
What do these two changes have in common? chicken cooking in an oven making paper from wood
[ "Both are caused by cooling.", "Both are caused by heating.", "Both are only physical changes.", "Both are chemical changes." ]
3D
natural science
scienceqa
Children today spend less time outdoors than ever before and it may be harmful not only to their physical health, but also to their cognitive development. A year-long study, recently published in the Sciences, found that elementary school children who were exposed to more green space within or directly outside their school showed improved learning and memory. The findings reinforce that of a recent six-year study on 905 Massachusetts public elementary schools, which found that students in schools that had more "greenness" in their surroundings reported higher scores on standardized testing in English and math. "There is an expanding body of scientific evidence linking the human experience in the natural world to better physical and mental health and improved cognitive abilities," journalist Richard Louv, co-founder of the Children & Nature Network, said in an email to The Huffington Post. "An increasing number of homeschoolers, nature preschools, independent primary and secondary schools, and forward-thinking public schools are incorporating nature experience into learning." The new study was conducted on more than 2,500 children in second, third and fourth grade at 36 primary schools in Barcelona, Spain. Researchers found that the students who attended schools with more green space showed a 5 percent improvement in the short-term memory that's critical for reasoning, learning and comprehension. But their inattentiveness decreased slightly. Spending time outside could have a number of benefits for children beyond improved memory and attention. Another recent study found that adventurous outdoor play such as climbing, rough and tumble play, and exploring alone improves children's physical health while also help them develop creativity and social skills greatly. Some schools are starting to take notice, creating more space for children to enjoy being in nature, including community gardens, outdoor playgrounds and small parks. In which column of a newspaper can you see this article?
[ "Entertainment.", "Travel.", "Parenting.", "Education." ]
3D
nutrition
mmlu_labeled
Since 1950, the amount of information about the nutrition of food has increased by nearly 900 percent. Besides this fact, obesity has risen by 214 percent and nearly two out of every three adults in America are overweight or obese. Being overweight is not only an appearance problem, and it also increases the risk of various diseases including diabetes, sleep disorder and cancer. With so much nutritional knowledge easy to find, we cannot simply ignore our present obesity epidemic . We know that fruits and vegetables are rich in vitamin. Though we are overweight, many of us choose junk food over healthy food out of habits. One explanation for our strong desire for junk food is that we learn to connect junk food with positive feelings when we are young, and changing this attitude requires a huge amount of confidence and determination. Fortunately, new research published in May 2012 has shown a simple and _ way to make healthier food choices- the one that doesn't rely on great determination. The research was based on two separate studies and it was carried out by T. Bettina Cornwell of the University of Oregon and Anna R. McAlister of Michigan State University. In the first study, 60 adults between the ages of 19 and 23 were questioned about the role of food and drinks. The survey tells us that adults prefer sweetened drinks with high-calorie, salty foods, to sweetened drinks with vegetables. In the second study, 75 children between the ages of 3 and 5 were gathered for some experiments including drinks served with vegetables. The preschooler experiments were carried out under different situations and on different days. The researchers found that the children chose to take more green vegetables when they were served with water instead of a sweetened drink. According to Cornwell, children learn to connect high calorie, sugary drinks such as cola, with high fat foods such as French fries, from a very early age. McAlister adds that early taste development appears to play an important role in food choices later in life. Meals served at home and meals offered at restaurants, set the stage for this idea and for the preference to choose junk food over healthy food, when beginning to take sweetened drinks. "Our taste preferences are heavily influenced by regularly eating particular food and drinking particular drink," states Cornwell. "If the drink on the table goes against both adults and children eating their vegetables, then perhaps it is time to change that drink... and to serve water with all meals. Restaurants could easily use water as free drink for children's meals and charge extra money for other drinks." Both McAlister and Cornwell are confident that serving water with meals could effectively reduce the nation's obesity rates, diabetes rates and ever rising healthcare costs. Which would be the best title for this text?
[ "Stop children drinking sugary drinks", "Drink water to eat more healthy", "Change eating habits to lose weight", "Eat healthy food at home" ]
1B
nutrition
mmlu_labeled
When a rare disease ALD threatened to kill the four-year-old boy Lorenzo, his parents refused to give up hope. Doctors explained that there was no cure for ALD, and that he would probably die within three years. But Lorenzo's parents set out to prove the doctors wrong. The parents devoted themselves to keeping their son alive and searching for a cure. But doctors and the families of other ALD patients often refused to take them seriously. They thought the efforts to find a cure were a waste of time, and drug companies weren't interested in supporting research into such a rare disease. However, the parents still refused to give up and spent every available hour in medical libraries and talking to anyone who would help. Through trial and error, they finally created a cure from ingredients commonly found in the kitchen. The cure, named "Lorenzo's Oil", saved the boy's life. Despite the good results, scientists and doctors remained unconvinced. They said there was no real evidence that the oil worked and that the treatment was just a theory. As a result, some families with ALD children were reluctant to try it. Finally, the boy's father organized an international study to test the oil. After ten years of trials, the answer is: the oil keeps ALD children healthy. Doctors said that Lorenzo might die within three years because _ .
[ "they had never treated the disease before", "Lorenzo was too young to be cured", "no cure had been found for ALD", "ALD was a rare disease" ]
2C
college_medicine
mmlu_labeled
Which of the following substances can be separated into several elements?
[ "nitrogen", "zinc", "air", "aluminum" ]
2C
natural_science
ai2_arc_challenge
When someone says "SHARK" most people think of a big, toothy, underwater animal; basically we are imagining a Great White. In fact sharks come in all shapes, sizes and even colors! Follow me please; I'd like to show you a very special small shark commonly known as horn sharks, only found in the coastal waters of north-west North America. Look at this shark, and you can easily see the horns on it and you will know the reason why it is called the horn shark is that it has the broad, flattened head and two large horn-like spines found behind its eyes and makes it one of the hardiest of all shark species. What makes it unique is that as its enemy attempts to swallow it, the spines on its back will stick into the enemy's mouth and give a good chance for it to get away. The horn shark is brown in color with black spots all over its body. The adults can reach up to a length of 4 feet and weigh up to 10 kg. An interesting fact about the horn shark is that it has five gills . The horn shark is a clumsy swimmer using its flexible pectoral fins to push itself along the bottom of the ocean. The maximum distance that has ever been recorded for a horn shark to have traveled out from its habitat is 10 miles. Today, as so little is known about its population off the Californian coast, they have been listed as being "Data Deficient" in the World Conservation Union. The horn shark is being threatened both by water pollution and commercial fishing in the area. Though they are not among those sea creatures hunted primarily for food, but they often get caught as a by-catch in fishing expeditions. The horn shark gets its name for _ .
[ "its small size", "its large eyes", "its two large spines", "its brown color with spots" ]
2C
college_biology
mmlu_labeled
The Crouch quadruplets have always been considered quite special but not so special---all four have been accepted into America's Yale University. Dean at the university, Jeffrey Brenzel, said the admission for Kenny, Martina, Ray and Carol, all 18-year-old students at Danbury High School in Connecticut , was probably the first for the university. "The living memory in the office here shows that we've just had twins, never quadruplets," he told the reporters. "They are all interesting and quite smart in their own way. They are extremely lively kids, very attractive, but clearly four different people. They are all in the top 10 percent of the class." The quadruplets explained to The New York Times how they nervously logged on one by one to the Yale website to discover their fates, First was Ray, who described how the screen suddenly turned Yale blue and displayed the university's bulldog mascot with the message "welcome to the Class of 2014". "We just kept logging on and screaming, logging on and screaming,' Martina, last to find out, said in an interview with the local television station WINH-TV. Until May 1 they have to decide whether to accept Yale's offers and part of the decision will come down to money, they told the Times. Their father Steven works as a case manager with the Connecticut mental health department and their mother, Caroline, who originally came from Nigeria, is studying for her master's degree in social work, according to the Times. Ranked as one of the top three universities in the US after Harvard and Princeton, Yale's school fees each year can be as high as 36,500 dollars, which would land the Crouch family with a very heavy load by the time they graduate in 2014. Why did the quadruplets keep logging on the Yale website?
[ "They liked to see the university's bulldog mascot.", "They wanted to know whether they would be in the same class.", "They wanted to get some information about Yale University.", "They wanted to find out if they were admitted to the university." ]
3D
college_medicine
mmlu_labeled
It is the preferred choice of millions of health-conscious Britons. But eating organic food could make you fat, experts have warned. A studyhas shown that people tend to believe that organic foods contain fewer calories, so buy and eat more. But people who decide to "go organic" could soon find themselves piling on the pounds. The warning comes from American researchers who studied whether the sight of an organic label was enough to influence a person's choice. For example, if people believe organic foods, produced without using pesticides and artificial fertilizers , have fewer calories, they may end up eating far too much and spending less time on sports activities and put on weight. Cornell University researchers said: " Some people mistakenly think that these foods are more nutritious , just because they carry an organic label." "The growing popularity of organic foods has led to some concern, as these foods may not necessarily be healthier than non-organic ones, but still may lead consumers to nutritional mis-judgments. If people feel a food to be more nutritious, they tend to let their guard down when it comes to counting calories---in the end leading them to overeat." Although a small number of differences in nutrient content were found to exist between organically-produced crops and traditionally-produced ones, these are of little health importance. It shows that there is no proof to support the choice of organically over traditionally-produced foods because of nutritional advantage. When Britons think they have had enough nutrition in organic foods, they will _ .
[ "eat less and do more sports to keep fit", "do more sports to reduce the calories", "eat less because the foods are expensive", "eat more and do less exercise" ]
3D
nutrition
mmlu_labeled
We live in a sweet world. The average American kid consumes more than 20 teaspoons of sugar per day, and adults eat 50% more sugar today than they did in the 1970s. We all know that too much sugar isn't good for you. But did we know it could be dangerous? A team of researchers at the University of Utah used mice to conduct a study on the negative effects of sugar. They found it could have serious effects on people's health. Sugar is found not only in sweets and candies, but also in many household items like pasta and crackers. During the 58-week-long study, mice were fed a diet containing 25% more sugar. This percentage equals a healthy human diet along with three cans of soda daily. The team found that these mice were twice as likely to die as mice fed a similar diet without the sugar. Though the mice did not show signs of obesity or high blood pressure, male mice were 26% less territorial and produced 25% fewer offspring than the other mice. Scientists often use mice for research because they have a similar genetic structure to humans. "Since most substances that are dangerous in mice are also dangerous in people, it's likely that those physical problems that cause those mice to have increased deaths also work in people," says study author James Ruff of the University of Utah. Findings from this study reveal negative effects that are not as noticeable as weight gain or heart problems. Sugar can contribute to long-term changes in the body that can change development and even shorten lives. Cutting sugar out of the American diet altogether may be difficult. But making the effort to control our nation's sugar desire will provide for a truly sweeter future. What's the best title of the passage?
[ "Living a sweet life", "Kids consume much more sugar", "Genetic structure of humans", "Danger of sugar" ]
3D
nutrition
mmlu_labeled
Sports can help you keep fit and close to nature. However, whether you are on the mountains, in the waves, or on the grassland, you should realize that sport you choose might have great influence on the environment. Some sports are _ . Golf, as you may know, eats up not only large areas of countryside, but also lots of water. Besides, huge amounts of energy are used to keep its courses in good condition. This causes major environmental changes. For example, in the dry places of Portugal and Spain, golf is often held responsible for (...) serious water shortage in some local areas. There are many environment-friendly sports. Power walking is one of them that you could take up today. You don't need any special equipment except a good pair of shoes, and you don't have to worry about resources and your purse. Simple and free, power walking can also help you stay healthy. If you walk regularly, it will be good for your heart. Experts say that 20 minutes of power walking daily can make you feel less anxious, sleep well and keep thin. Whatever sport you take up, you can make it greener than by using environment-friendly equipment and buying products made from recycled materials. But the final goal should be "green gyms." They are better replacements for traditional health clubs and modern sports centers. Members of green gyms play sports outdoors, in the countryside or other open spaces. There is no special requirement for you to start your membership . And best of all, it's free. The author writes the passage to _ .
[ "show us disadvantages of golf.", "encourage us to take part in green sports.", "explain the major sports influence of popular sports,", "discuss different kinds of environment-friendly sport." ]
1B
nutrition
mmlu_labeled
Scientists think it will be possible to record people's dreams and then interpret them, according to a new report. They claim to have developed a system which allows them to record higher level brain activity. Dr Moran Cerf told the journal Nature: "We would like to read people's dreams." Previously the only way to access people's dreams is for psychologists to ask about them after the event and try to interpret them. Dr Cerf hopes to eventually compare people's memories of their dreams with an electronic visualization of their brain activity. He told the BBC: "There's no clear answer as to why humans dream. And one of the questions we would like to answer is when do we actually create this dream?" The scientist believes his latest research shows that certain neurons or individual brain cells are linked with specific objects or concepts . He found that a particular neuron lit up when a volunteer thought about Marilyn Monroe. If a database was built up identifying various neurons with concepts, objects and people it would allow them to "read the subject's minds", according to Dr Cerf. However, Dr Roderick Oner, a clinical psychologist and dream expert, said that this kind of visualization would be of limited help when it came to interpreting the "complex dream narrative ". In addition to getting a detailed picture of individual neurons subjects had to have electrodes implanted deep in the brain using surgery. The Nature researchers used data from patients who had electrodes implanted to monitor and treat them for brain seizures . However, Dr Cerf said he hoped that it would be possible at a later stage to monitor people without invasive surgery .He said it would be "wonderful" to be able to read the minds of coma patients who are unable to communicate. What's the main idea of the whole passage?
[ "People can use many ways to interpret dreams.", "Scientists have different opinions about dreams.", "People's dreams will be recorded in the future.", "We have developed a system to record higher level brain activities." ]
2C
college_medicine
mmlu_labeled
I don't think there is anything wrong with your blood. The key to your problem is that long nap after dinner. If you didn't sleep for hours during the early part of the evening, you would be more ready to sleep at bedtime. If you didn't nap after dinner, you would not want to stay up so late, and you would not feel the need to take a sleeping pill. The pill is still working in your system when you get up in the morning. This helps account for the fact that you feel tired all day. You should get out of the habit of sleeping during the early evening. Right after your evening meal, engage in some sort of physical activity-a sport such as bowling, perhaps. Or get together with friends for an evening of cards and conversation. Then go to bed at your usual time or a little earlier, and you should be able to get a good night's rest without taking a pill. If you can get into the habit of spending your evenings this way, I am sure you will feel less tired during the day. At first it may be hard for you to go to sleep without taking a pill. If so, get up and watch television or do some jobs around your house until you feel sleepy. If you fall asleep and then wake up a few hours later, get up but do not take a sleeping pill. Read a while or listen to the radio, and make yourself a few hours' sleep that night, you will feel better in the morning than you usually feel after taking a pill. The next night you will be ready to sleep at an earlier hour. The most important thing is to avoid taking that nap right after dinner and avoid taking pills. According to the writer, it is difficult for you to go to sleep because _ .
[ "you get the habit of staying up late", "you haven't taken sleeping pills", "you sleep for hours after dinner", "you fail to do some exercises" ]
2C
college_medicine
mmlu_labeled
During a lab investigation, students were asked to determine the best way to clean up an oil spill using different materials. Investigation Materials • filter paper • foam sponge • metal wire screen • thin sock filled with hair The students tested the materials by placing each material into separate buckets containing oil and water. They recorded their observations on which material absorbed the most oil. Why would the students' teacher ask them to repeat their tests?
[ "to determine if water and oil can be separated", "to learn more about how to protect wildlife during an oil spill", "to improve the chances of obtaining accurate oil cleanup results", "to increase the total amount of oil removed from each container" ]
2C
college_chemistry
mmlu_labeled
In a contest to see which would win based on size and weight, the winner with more of both would be
[ "moon", "Earth", "pebble", "cat" ]
1B
high_school_statistics
mmlu_labeled
Scientists say life will be very different in 2050. First,there will be no TV channels in 2050.People will choose a program from a computer and watch it on TV.In 2050,we will get information from the computers only. Second,water will be a big problem in 2050.In many places,people won't have water to drink. Third,cars will use new and clean fuels and they will go very fast.There will be a computer in every car.And the computers will control the cars and there won't be any accidents . The cars will be _ in the future.
[ "very cheap", "very light", "very expensive", "very safe" ]
3D
computer_security
mmlu_labeled
The average college student in America spent an estimated seven hundred dollars on textbooks last year. The National Association of College Stores reported more than five billion dollars in sales of textbooks and course materials. Association spokesman Charles Schmidt says electronic textbooks now represent just two to three percent of sales. But he says that is expected to reach ten to fifteen percent by 2012. Online versions are now available for many of the most popular college textbooks. E-textbooks can cost half the price of a new print textbook. But students usually lose access after the end of the term. And the books cannot be placed on more than one device so they are not easy to share. So what do students think of e-textbooks? Administrators at Northwest Missouri State University wanted to find out. Earlier this year they tested them with five hundred students in twenty classes. The university is unusual. It not only provides laptop computers to all seven thousand of its full-time students. It does not require students to buy their textbooks either. They rent them to save money. The school aims to save even more by moving to e-textbooks. The students in the survey reported that downloading the books from the Internet was easy. They liked the idea of carrying lighter backpacks. And fifty-six percent said they were better able to find information. But most found that using e-textbooks did not change their study habits. And sixty percent felt they read more when they were reading on paper. In all, almost half the students said they still liked physical textbooks better. But the survey found that cost could be a big influence. Fifty-five percent said they would choose e-textbooks if using them meant their textbook rental fee would not increase. Roger Von Holzen heads the Center for Information Technology in Education at Northwest Missouri State. He tells us that administrators are disappointed with the e-textbooks now available because the majority are not interactive. He thinks growth will come when more digital books include video, activities, games and other ways to interact with the information. The technology is improving. But for now, most of the books are just words on a screen. According to the survey, over half of the students think e-textbooks _ .
[ "can be rented for less money", "help in finding more information", "are convenient to carry around", "help them do better in their lessons" ]
1B
college_computer_science
mmlu_labeled
What information supports the conclusion that Judith inherited this trait?
[ "Judith's parents have dark skin. They passed down this trait to Judith.", "Judith and her father both have dark hair." ]
0A
natural science
scienceqa
Which are you more likely to have with you at any given moment-your cell phone or your wallet? Soon you may be able to throw your wallet away and pay for things with a quick wave of your smart phone over an electronic scanner. In January, Starbucks announced that customers could start using their phones to buy coffee in 6,800 of its stores. This is the first pay-by-phone practice in the U.S., but we're likely to see more wireless payment alternatives as something called near field communication (NFC) gets into America's consumer electronics. Last December, some new smart phones which contain an NFC chip were introduced to the public. Already in use in parts of Asia and Europe, NFC allows shoppers to wave their phones a few inches above a payment terminal - a contact- free system built for speed and convenience. But before NFC becomes widely adopted in the U.S., a few problems need to be worked out, like who will get to collect the profitable transaction fees. Although some credit card providers have been experimenting with wave-and- pay systems that use NFC-enabled credit cards, cell phone service providers may try to muscle their way into the point-of-sale(POS)market. Three big cell phone service providers have formed a joint venture that will go into operation over the next 15 months. Its goal is "to lead the U.S. payments industry from cards to mobile phone." The other big NFC issue, apart from how payments will be processed, is security. For instance, what's to stop a thief from digitally pick-pocketing you? "We're still not at the point where an attacker can just brush against you in a crowd and steal all the money out of your phone," says Jimmy Shah. A mobile- security researcher, "Users may also be able to set transaction limits, perhaps requiring a password to be entered for larger purchases." Still uneasy about this digital-wallet business? Keep in mind that if you lose your smart phone, it can be located on a map and remotely disabled. Plus, your phone can be password protected. Your wallet isn't. The NFC technology can be used to _ .
[ "ensure the safety of shoppers", "collect transaction fees easily", "make purchase faster and simpler", "improve the quality of cell phones" ]
2C
computer_security
mmlu_labeled
Steve Jobs, Apple's chief executive, made his first public appearance since going on medical leave six weeks ago, taking the stage at a San Francisco media event to introduce the iPad 2, the second generation of the company's tablet computer. Thin but energetic, Mr. Jobs showed off a thinner iPad. " We've been working on this product for a while and I just didn't want to miss this day," he said. His absence has concerned investors, especially since the group has given no details of his condition. He was diagnosed with cancer in 2004 and had a liver transplant during almost six moths of medical leave in 2009. People close to him said last month his health had been changing. Apple's stock rose more than 2 percent in the minutes after Mr. Jobs began speaking, then gave up some of its gain as he detailed the iPad 2. The iPad 2 will go on sale in black and white versions in the US on March 11 and in 26 other countries, including the UK and Germany, on March 25. The table is Apple's biggest product launch since the iPhone three years ago, and is comparable to the iPhone as the most expected in Apple's history. Most of the improvements in the latest version had been expected, including front and rear-facing video, which allows video conferencing between iPads, Mac computers and the most recent iPhones and iPods, a larger speaker, a faster processor and other upgrades. The iPad 2 is one-third thinner than the original tablet and slightly lighter, with a 9.7-inch touchscreen. It can run movies, books, games and a complete range of applications. In the US it will work with AT&T and Verizon, the top two mobile carriers. The pricing will be the same to the 2010 iPad at its introduction, ranging from $499 to $829 in six models. But Apple dropped prices on the older iPad on Wednesday by $100 across the board. Apple has made the most of its year-long head start in tablets, selling 15,000,000 units of the older iPad last year and taking about 85 percent of the market. Forrester predicted that the iPad 2 would clain 80 percent of the US market this year, or 20,000,000 out of 24,000,000 total shipped. This prediction was based on both the technical improvements to the iPad 2, and the distribution difficulties and higher prices for Apple's rivals. Motorola, BlackBerry maker Research in Motion, Samsung and others have brought out competing tablets, many based on Google's Android software. Mr. Jobs said the rest of the field was still catching up with the first iPad and their markets for applications designed for tablets had, at best, 100 small programs. This compares with 65,000 on Apple's applications store. In what respect are the iPad 2 and the 2010 iPad exactly alike?
[ "the weight", "the speaker", "the thickness", "the pricing at the introduction" ]
3D
computer_security
mmlu_labeled
It's getting hotter and hotter outside. Summer is already here! Summer means high temperature, more outdoor activities and all kinds of fruit and vegetables. How can we stay fit in this exciting season? Here are some good suggestions: Eat and drink properly What is healthy to eat in summer? Fresh and light food. Fish can be a good choice. It can keep your body energetic and help fight against the burning sun. Another good choice is colorful fruit and vegetables.They not only _ our eyes, but are full of healthy chemicals ( ) .Tomatoes can help protect your skin against sunburn. Blueberries are good for your brain and eyes. The more color,the better! With all those summertime activities you will be thirsty. What to drink ? Water. Water has zero calories ( ) and is the perfect drink to stop your thirst ( ) . Try not to drink too many energy drinks, sports drinks and soda drinks which have lots of sugar and caffeine ( ) in them. Stay active and cool Summer is a great season to enjoy outdoor activities and play. It s also a goodtime to lose weight. If you are lucky enough to be near a body of water, try water sports like swimming, surfing, water skiing and so on. These sports keep you cool and active at the same time. You'll have no problem beating the heat and keeping fit as well. Be careful of the sunshine. Summer allows us more chances to get outside, but it also means more possibilities to get burnt by the sunshine. If you are going outside, keep away from the sun when it's the strongest--usually between 11 a.m. and 3 p.m. If you have to stay in the sun for a long time, sun cream ( ) ,a big hat and a long - sleeve jacket will be necessary. Which can be the best title of the passage?
[ "How to Stay Healthy", "How to Lose Weight", "Enjoy Outdoor Activities in Summer", "Keep Fit in Summer" ]
3D
nutrition
mmlu_labeled
Women with an hourglass figure have brains to go with their curves , scientists claim. Going in at the waist is said to be a sign of intelligence which leads to brighter children, too. Women such as Nigella Lawson with a big difference between their waist and hip measurements scored singificantly better in tests than those with thinner, straighter frames. Researchers concluded that it was not necessary for a woman to be skinny--what mattered is that her waist should be smaller than her hips. A ratio of 3:5 was found to be ideal. The study, by the Universities of Pittsburgh and Califrnia, involved 16,000 women and girls. According to the scientists, _ They claim that the fat around curvy hips and thighs holds higher levels of -3 fatty acids which are essential for the growth of the brain during pregnancy . The fat which collects around the waist, however, is more likely to contain -6 fatty acids, which are less suited to brain growth. Reporting in the journal Evolution an Human Behaviour,the researchers found that the children of curvy mothers are more likely to do well in cognitive tests than others. They claim that this could help explain why the children of teenage mothers--who might not yet be physically mature enough to have developed real curves--tend to do less well in school. As well as boosting brainpower, -3 fatty acids found in oily fish are considered to be of huge health benefit. Althoug the study analysed women's bodies only, -3 fatty acids are also stored in men's hips. However, it is not known whether men with wide hips benefit from the same brainpower boost. Suppose the following measurements are taken from four women. Which of them is more likely to have bright children?
[ "Waist:60cm;Hip:100cm", "Waist:60cm;Hip:80cm", "Waist:55cm;Hip:60cm", "Waist:120cm;Hip:110cm" ]
0A
nutrition
mmlu_labeled
Select the one substance that is not a mineral.
[ "Chrysotile is a solid. It is formed in nature.", "Fluorite is a solid. It is formed in nature.", "Cheese is not a pure substance. It is made by humans." ]
2C
natural science
scienceqa
Having an exercise plan is important, but you should always ask your doctor for advice before starting it. Keep in mind that you can have too much of a good thing: overexercising and exercising in a wrong way can hurt your body. The following suggestions can help you avoid this. Warm up before exercise. This helps to prepare your body for activities. It's especially important in the morning. Cool down after exercise. Rather than stop immediately, do a few light activities to avoid aches and pains later. Exercise with your limits . Build up slowly. Never try to exercise when you feel painful. If you don't listen to your body, you will hurt yourself. Avoid being thirsty. Water is important to keep your normal temperature during exercise and prevent tiredness. Wear sports shoes. These shoes can keep your feet safe and prevent you from being hurt. _ is especially important before exercise in the morning.
[ "Warming up our body", "Cooling our body down", "Drinking enough water", "Putting on sports shoes" ]
0A
nutrition
mmlu_labeled
Which activity involves exerting force on an object with a foot?
[ "basketball", "kickball", "softball", "volleyball" ]
1B
high_school_physics
mmlu_labeled
Body language is one of the most powerful means of communication, often even more powerful than spoken language. It is said that our body movements communicate about 50 percent of what we really mean while words only express 7 percent. So, while your mouth is closed, your body is just saying. Arms. How you hold your arms shows how open and receptive you are to people you meet. If you keep your arms to the sides of your body or behind your back, this suggests you are not afraid of taking on whatever comes your way. Outgoing people generally use their arms with big movements, while quieter people keep them close to their bodies. If someone upsets you, just cross your arms to show you're unhappy! Head. When you want to appear confident, keep your head level. If you are a monitor in class, you can also take on this position when you want your words to be taken seriously. However, to be friendly in listening or speaking, you must move your head a little. Legs. Your legs tend to move around a lot more than normal when you are nervous or telling lies. If you are at interviews, try to keep them still! Posture . A good posture makes you feel better about yourself. If you are feeling down, you normally don't sit straight, with your shoulders inwards. This makes breathing more difficult, which can make you feel nervous or uncomfortable. Mouth. When you are thinking, you often purse your lips. You might also use this position to hold back an angry comment you don't wish to show. However, it will probably still be noticed, and people will know you're not pleased. Face. When you lie, you might put on a false face. But that expression would crack briefly, allowing displays of true emotions such as happiness, sadness, disgust and fear to come through. Which of the following movements shows someone is nervous?
[ "Not sitting straight with the shoulders inwards.", "Moving around a lot more than normal.", "Keeping the arms to the sides of the body.", "Having the lips pursed to hold back an angry comment." ]
1B
human_sexuality
mmlu_labeled
Dogs have long been used to find explosives and drugs.Now,a new study shows that man's best friend can also help to find lung and breast cancer,researchers report in integrative Cancer Therapies.The findings show that trained ordinary household dogs can detect early--stage lung and breast cancers by smelling the breath samples of patients. Researchers have found that cancer cells send out molecules different from those of healthy ones,and that might be sensed by smell by the highly sensitive dog's nose. For the study,five dogs were trained by a professional instructor to respond differently to breath samples of healthy and cancer patients."The dogs learned to sit or lie down in front of cancer patient samples and to ignore control samples through the method of food reward," McCulloch explained. After a period of training,researchers tested the animals'ability to distinguish cancer patients from controls.The animals were given breath samples from 55 patients with lung cancer,3 1 with breast cancer and 83 healthy controls who were not included in the original training period. McCulloch's group found that the dogs were able to correctly distinguish the breath samples of cancer patients from those of the control subjects in about 90 percent of the cases.The dogs were also able to detecting early-stage lung and breast cancers. "These results show that there is hope for early detection,"McCulloch said.The re-searches are planning to conduct further studies on the breath composition of cancer patients to possibly design an electronic device that can do the dogs'job."A dog's nose is so powerful it can detect odors 10 000 to 100 000 times better than a human nose can.I hope people will be interested in doing this research,"McCulloch added,"It shows that there is definitely something out there." Which of the following would be the best title?
[ "Special Noses of Dogs", "Dogs and Cancer", "Dogs Smell Signs of Cancer", "McCulloch'S New Discovery" ]
2C
college_medicine
mmlu_labeled
Fossils of the fern Glossopteris have been found in the continents of South America, Africa, Asia, and Antarctica. The seeds of this fern were too small to be dispersed by wind. Which is best indicated by the presence of Glossopteris fossils on these continents?
[ "Glossopteris was versatile enough to adapt to all climates.", "The landmasses were joined together in pre-historic times.", "Fossils were much better preserved in the southern continents.", "The northern climate regions were not suitable for plant growth." ]
1B
college_biology
mmlu_labeled
What is the volume of a kiddie pool?
[ "1,015 liters", "1,015 milliliters" ]
0A
natural science
scienceqa
Can dolphins talk ? Maybe they can't talk with words ,but they can talk with sounds . They show their feelings with sounds . Dolphins travel in group . We call a group of them a "school ". They don't study , but they travel together. Dolphins talk to other dolphins in the school .They give information . They tell other dolphins when they are happy or sad or afraid . They say "welcome "when a dolphin comes back to the school . They talk when they play . They make a few sounds above water . They make many more sounds under water . People can hear these sounds because they are very high . Sometimes people catch dolphins for large aquariums . People can watch the dolphins in a show . Dolphins don't like to be in the aquarium , being away from their school . They are sad and lonely if they do so . There are many stories about dolphins . They help people . Sometimes they save someone's life . Many people believe that dolphins can bring good luck . Dolphins show their feelings with _ .
[ "pictures", "words", "waves", "sounds" ]
3D
college_biology
mmlu_labeled
This is the place for you to come to share stories with other real kids who are trying hard to improve their bodies and minds! Did you score a goal in your soccer game? Have you got rid of a bad habit? Are you working to reduce your stress in life? Tell the world what makes your body and mind healthy! Posted by DP, Ohio I have been working on a fitness equipment to exercise for over four months. I have completed my goal of losing weight and I am very proud of myself. That is so cool! Posted by MK, Missouri I was always tired at school, because I used to stay up late watching TV. I even fell asleep one day in my history class, and when I woke up, the teacher was looking at me and laughing! I decided that minute to start going to bed on time. It's kind of a drag missing the shows I like, but I can tell my body loves it----I feel so much better. Posted by SP, Georgia Last year , I didn't make the soccer team at school. I didn't want to try out again this year, but a few weeks before tryouts , I started kicking the ball around and practicing. When tryout day came, I decided to give it another shot. Guess what? I made the team! Posted by JS , New York I'm deaf, so I've had more trouble playing sports than other people. But who wants to sit at home all the time? I like to play basketball with guys in my neighborhood. I can't hear the ball bounce or listen to the guys call plays, but I've taught them to use some sign language, and so far, we've been unstoppable. The kids mentioned in the text came here _ .
[ "to talk about their efforts to keep fit", "to learn to tell stories", "to make new friends", "to share weight-losing experiences" ]
0A
nutrition
mmlu_labeled
Children at a school in Italy have today begun an experiment to replace all their books with personal computers. The pupils involved will each be given a special laptop that contains their entire courses. Until today, the Don Milani di Rivoli elementary school in central Turin was like any other. Children turned up, got out their books and pens and began the process of learning. But now, in what's being described as a unique experiment, 60 fifth-grade pupils and a number of third-graders, will start using computers only. The mini-laptops, which run Windows software, all have a full curriculum programmed into them. The pupils will use the computers to do all their reading and writing. Security systems within the laptops mean the children's access to the Internet is strictly controlled. The machines weigh less than a kilogram, can be dropped from a height of 1.5 metres and are waterproof. Instead of spending 700 dollars a year on books, the laptops, built by the Italian company Olidata, cost less than 400 dollars. One of the teachers involved in the scheme says that, for the first time, schools will be able to verify in a scientific way how a computer alone can improve the learning process. The experiment, which has the backing of parents, is due to last a year. In other countries, such a programme is also being carried out. Venezuela is ordering one million low cost laptops for its school children. The machines will be based on the Intel Classmate laptop that has been designed for school children. Many see the deal as a blow for the One Laptop Per Child organization that has also been introducing its child- friendly machine to developing nations. Which of the following is TRUE about the mini-laptop?
[ "It is heavy for pupils to carry.", "It can't be damaged by water.", "It is one and a half meters high.", "It is easily broken or damaged." ]
1B
computer_security
mmlu_labeled
There are 45 students in our class. I have made a survey, 36 students say they like to exercise. Most boys play basketball together twice a week. But girls think basketball is difficult for them, they'd like to play volleyball together twice a week. My friend, Tony, is good at running. He runs fastest in our class. He runs for 30 minutes on the playground every evening before he goes to bed. Is it interesting? Gray is good at swimming. He goes to the swimming club three times a month in winter, and three times a week in summer. So he is pretty healthy. Some of my classmates have good eating habits. They eat both meat and vegetables. 70% of them drink milk every day. 15 students say they drink milk three or four times a week. But some students like to eat junk food, especially Sally. What's worse is that she doesn't like to exercise, so she is very fat. She always says " I'm going to lose weight tomorrow." How often do most boys play basketball?
[ "Everyday", "Twiceaday", "Twiceaweek.", "Twiceamonth." ]
2C
nutrition
mmlu_labeled
what is a mammal's parenting behavior?
[ "they give nutrition to their young", "they lack care for their young", "mammals eat their young", "mammals have zero offspring" ]
0A
college_biology
mmlu_labeled
Lidong came on November 8 this year. It is the Chinese word for one of the 24 solar terms . It means the beginning of winter. As the weather gets colder and there is less sunlight, people are more likely to get sick. Adults in the US usually have two to four colds each year. Young children suffer from six to eight colds per year, especially in winter months, according to the American Lung Association. One of the best ways to keep healthy during winter is to stay warm. There are many ways to stay warm. A living room should be around 18-21 C, and you can also use a hot water bottle or at least 16 C. blanket to keep warm while in bed. Getting plenty of exercise is always a good idea. Take a walk on a sunny afternoon, do a long distance run or skip rope. These things keep your blood moving and your metabolism fired up. Food gives us energy and helps to warm us from the inside. High-protein foods, like fish and meat, provide a lot of energy. Add some things to your winter dishes, such as ginger, pepper and garlic. These things can make you warm. A winter coat warms you up from the outside. Add several layers of thin clothing, for example, a shirt and a thin sweater, to stay even warmer. Clothes made from wool are usually very warm. How to make winter days colorful? Is it too cold to play outside? Don't worry. Here are some tips for having fun at home. Give it a try! # Enjoy a movie with your parents. There are a lot of choices, such as Spy Kids. You can also talk about the movie with your parents after it's over. # Cook a meal with your parents. You can cook some simple dishes, such as scrambled eggs with tomato. You may need your mother's help for the first time. # Clean your bedroom. You need to sweep the floor, tidy your desk and make your bed. By doing this, you really help your mother a lot. # Read your favorite book. Reading is not only helpful for your writing ability, but can also help to build your character. The passage is most probably taken from the _ part of a magazine.
[ "health", "travel", "society", "food" ]
0A
college_medicine
mmlu_labeled
PITTSBURGH - For most people, snakes seem unpleasant or even threatening. But Howie Choset sees in their delicate movements a way to save lives. The 37-year-old Carnegie Mellon University professor has spent years developing snake-like robots he hopes will eventually slide through fallen buildings in search of victims trapped after natural disasters or other emergencies. Dan Kara is president of Robotics Trends, a Northboro, Mass.-based company that publishes an online industry magazine and runs robotics trade shows. He said there are other snake-like robots being developed, mainly at universities, but didn't know of one that could climb pipes. The Carnegie Mellon machines are designed to carry cameras and electronic sensors and can be controlled with a joystick . They move smoothly with the help of small electric motors, or servos, commonly used by hobbyists in model airplanes. Built from lightweight materials, the robots are about the size of a human arm or smaller. They can sense which way is up, but are only as good as their human operators, Choset added. Sam Stover, a search term manager with the Federal Emergency Management Agency based in Indiana, said snake-type robots would offer greater mobility than equipment currently available, such as cameras attached to extendable roles. "It just allows us to do something we've not been able to do before," Stover said, "We needed them yesterday." He said snifter dogs are still the best search tool for rescue workers, but that they can only be used effectively when workers have access to damaged building. Stover, among the rescue workers who handled the aftermath of Hurricane Katrina, said snake robots would have helped rescuers search flooded houses in that disaster. Choset said the robots may not be ready for use for another five to ten years, depending on funding. Which institution is responsible for the development of Choset's robots?
[ "Robotics Trends.", "Pittsburgh City Council.", "Carnegie Mellon University.", "Federal Emergency Management Agency." ]
2C
college_computer_science
mmlu_labeled
Protein is used by the human body to
[ "build strong bones.", "absorb vitamins.", "repair cells.", "provide fiber." ]
2C
nutrition
mmlu_labeled
Most people know Alexander Graham Bell invented the telephone. But not many know about another talking device (equipment) he invented just four years later, in 1880. He called the device the photophone. "Photophone" comes form the Greek words for "light" and "sound". The photophone did not use electricity to carry sound over wires between two people. _ . Instead, the photophone used a beam of sunlight traveling through the air. With his invention, Bell could actually transmit human speech on a beam of light. To do so, he spoke close to a thin mirror that was reflecting sunlight. The vibrations of his voice caused the mirror to vibrate, and the vibrating mirror caused the light to vibrate. The vibrating light hit a light-sensitive cell in a receiver placed some distance away. The cell changed the light patterns into electrical signals. Earphones changed the signals back into sounds. Bell believed that his idea of talking on a beam of light would prove to be important. He often called the photophone his greatest invention. Even though the photophone depended on a source of energy that was not constant--the sun--Bell wasn't a bit discouraged. He felt sure that people would one day talk using beams of light. Two much more recent developments made Bell's dream come true. In 1960, a scientist built the laser. A laser produces a highly concentrated beam of light. Shortly afterward, other scientists developed a new kind of optical fiber. The optical fiber is a glass thread. The new fiber could carry light beams long distances--as far as several miles. Which statement is TRUE about Bell's invention of photophone?
[ "Earphones are used to change light into sounds.", "The photophone is based on the invention of the telephone.", "The photophone depends on a constant source of energy.", "The laser and the optical fiber are helpful for Bell's invention." ]
3D
electrical_engineering
mmlu_labeled
Regularly staying late at the office significantly increases the risk of having a stroke or heart attack, researchers have found, working just an hour extra each day pushes up stroke risk by 10 per cent, according to a huge review of working patterns. And people who work an extra three hours a day--or 55 hours a week--are 33 per cent more likely to have a stroke, the scientists found. The research, published in the Lancet medical journal, is based on health records of more than 500, 000 people across Europe, the US and Australia. Scientists led by University College London warned that people who work longer hours tend to do less exercise, sit at a computer for hours at a time and drink more than people with a better work-life balance. Repeated stress may also be to blame for greater health problems, the scientists think. They looked at the combined result of 17 previous studies, in which 529, 000 people were tracked over an average of seven years. Experts stressed that the study had only found a link between hours worked and heart problems---it had not proved what had actually caused each death. But they warned people to take note of the findings. Dr Tim Chico, consultant cardiologist at Sheffield Teaching Hospitals, said "For many people, reducing their working hours would be difficult or impossible, and this study does not show that it would reduce the risk of stroke." Most of us could reduce the amount of time we spend sitting down, increase our physical activity and improve our diet while working and this might be more important the more time we spend at work. Which factor is NOT the cause of the higher risk of health problems?
[ "Excessive drinking.", "A healthy diet.", "Repeated stress.", "Lack of exercise" ]
1B
college_medicine
mmlu_labeled
Assume all other forces on Reba are balanced. Which statement describes the forces on Reba?
[ "The forces are unbalanced, so there is a net force on Reba.", "The forces are balanced, so there is no net force on Reba." ]
0A
natural science
scienceqa
Dolphins are interesting animals and researchers find them interesting to watch. They don't have hands, but can use tools to solve problems, just like us. Scientists have observed a dolphin trying to get a shy eel to come out of its hole by poking it with a dead fish. Many species of dolphin live in large societies. They have many different relationships and need a good communication system; they use a variety of sounds to communicate with each other. There is currently no evidence that dolphins have a language of their own. But scientists still have a lot to find out about these animals and so there are certain to be a few surprises in the future. At Kewalo Basin Marine Laboratory in Hawaii, the dolphin team have developed a sign langue to communicate with the dolphins, and the results are amazing. Not only do the dolphins understand the meaning of individual words, they also understand the significance of word order in a sentence. For example, when they were asked to 'touch the ball with your tail and then jump over it' they generally responded correctly and straight away, which showed that they understood the langue. Most mammals seem to enjoy play--but dolphins seems to like making their games as challenging as possible. On a beautiful day in 1997, researchers working at a beach, off the southern coast of Brazil, observed a little dog going into the sea and swimming towards the dolphins. To their surprise, the dolphins approached the dog and then started throwing it into the air. The dog seemed to enjoy the 'game' and continued playing with the dolphins for more than an hour. From then on, different dogs were seem trying to interact with the dolphins. Dolphins live in a very different world to ourselves, but they are very good at our 'intelligence tests'. For example, they will jump out of the water when they hear a whistle noise. They do this because they will get a fish as a reward. There is still much to learn about these flexible problem-solvers, but from the evidence so far, it would seem as though dolphins are very intelligent. Dolphins not only understand the meaning of individual words, they also understand the importance of _ in a sentence.
[ "the subject", "the verbs", "the main structure", "word order" ]
3D
college_biology
mmlu_labeled
A simple pulley example could be
[ "Going running on a treadmill", "Swimming lap in a pool", "Riding a bike outside", "pulling water from a well" ]
3D
high_school_physics
mmlu_labeled