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Many of us believe that a person's mind becomes less active as he grows older.But this is not true,according to Dr.Lissy F.Jarvik,professor of psychiatry at the University of California,Los Angeles,and a board member of the New Center for Aging at the Veterans Hospital.She has studied the mental functioning of aging persons for several years.For example,one of her studies concerns 136 pairs of twins, who were first examined when they were already 60 years old.As Dr.Jarvik continued the study of the twins into their 70s and 80s,their minds did not generally decline as was expected. However,there was some decline in their psycho-motor speed. This means that it took them longer to accomplish mental tasks than it used to.But when speed was not a factor,they lost very little intellectual ability over the years.In general,Dr.Jarvik's studies have shown that there is no decline in knowledge or reasoning ability.This is true not only into the 30s and 40s,but into the 60s and 70s as well. As for learning new things,and ability to remember,studies by Dr.Jarvik and others show that the old are equal to the young.It is true that older people themselves often complain that their memory is not as good as it once was.However,much of what we call"loss of memory"is not that at a11. In the cases where the older person's mind really seems to decline,it is not necessarilv a sign of a decay due to becoming old or"senility".Often it is simply a sign of a depressed emotional state.This depression usually can be got rid of by counseling with a psychologist,or medicine which fights depression. In American society,when an older person loses something,we tend to call him or her"senile".But notice that when a younger person loses something,he does not blame it on senility or loss of memory.He finds some other excuse! The word"senility"most likely means_.
|
[
"excellent health",
"weakness in body and mind because of old age",
"occasional forgetfulness",
"giving up one's life"
] | 1B
|
human_aging
|
mmlu_labeled
|
The famous American gorilla expert Diane Fossey had a completely new way to study gorillas -- she pretended to be one of them. She copied their actions and way of life -- eating plants and getting down on her hands and knees to walk the way a gorilla does. It was a new relationship. Diane Fossey was murdered in Rwanda in 1985 and her story was made into the popular filmGorillas in the Mist. It was a long way fromKing Kong, which is about a gorilla as a monster (a frightening animal), and helped to show a new idea: the real monster is man, while the gorilla is to be admired. Today there are thought to be around 48,000 lowland gorillas and maybe 400--450 mountain gorillas in the wild. From the Congo in West Africa, to Rwanda and Uganda further east, they are endangered by hunting and by the cutting down of their forest homes. Some time ago, I found in my letterbox a little magazine from the World Wide Fund for Nature. It had two photos side by side. One was of a young gorilla. "This is a species of mammal ," said the words below it. "It is being destroyed by man. We must save it for our own good." The other photo showed a human baby. The words also read, "This is a species of mammal," but then went on: "It is the most destructive on earth. We must retrain it for its own good." We can learn from the text that _ .
|
[
"Gorillas in the mist was based Fossey's experiences",
"Lowland gorillas live longer than mountain gorillas",
"King Kong showed us that a gorilla is admirable",
"Diane Fossey was murdered by a gorilla"
] | 0A
|
college_biology
|
mmlu_labeled
|
Complete the sentence.
Baking an apple pie is a ().
|
[
"chemical change",
"physical change"
] | 0A
|
natural science
|
scienceqa
|
Electricity is able to flow through a circuit after it is...?
|
[
"Steady",
"fully complete",
"Turned on",
"Charged"
] | 1B
|
electrical_engineering
|
mmlu_labeled
|
Hello! I'm Tom. This is a pencil box. It's orange. It's my pencil box. What's in the pencil box? A ruler is in the pencil box. It's my ruler. The ruler is blue and red. That is a pencil in my pencil box. It's black and white. It is not my pencil. Look! That girl is Lucy. It is her pencil. I find a green pen in the pencil box, too. It's Tim's. I call Tim at 759-631. It is his telephone number. What is Tim's telephone number?
|
[
"It's seven five nine-six three one",
"It's seven five eight -eight three one",
"It's six eight nine - eight six one",
"It's seven three eight - six one eight"
] | 0A
|
elementary_mathematics
|
mmlu_labeled
|
Steve knew he'd been adopted as a baby, and when he turned 18, in 2003, he decided he'd try to track down his birth mother. The agency from which he'd been adopted gave him his mother's name: Tallady. But online searches didn't turn up any results about it, and Steve had to let it go. In 2007, though, he searched for the name again online. This time, the search results included a home address near the Lowe's store where Steve, then 22, worked as a deliveryman. When he mentioned the coincidence to his boss, his boss said, "You mean Tallady, who works here?" Steve and Tallady, a cashier, had said hello to each other a few times at the store, but they'd never really talked. He hadn't even known her name. Steve thought there was no possible way she was his mother though they shared the same name. For a few months, Steve avoided Tallady. "I wasn't sure how to approach her," he told a local reporter. Finally, the agency volunteered to arrange their reunion. When Tallady realized that the nice guy she'd been waving at was his son, she sobbed. She'd always hoped to meet her birth son one day. Later that day, mother and son talked for almost three hours at a nearby bar. She'd given him up for adoption in 1985, when she was 23. "I wasn't ready to be a mother," she told him. Married with two other children, Tallady says, "I have a complete family now." Steve gave up the online search for his birth mother in 2003 because _ .
|
[
"the agency didn't give him any help",
"there was no information about his mother",
"his mother didn't turn up online",
"he missed the information about his mother"
] | 1B
|
human_sexuality
|
mmlu_labeled
|
LG Electronics, the world's fourth largest cell phone producer, has added another feature to the mobile phone-reading books for the visually impaired . The company started marketing the model, the LF1300 on Sep.18.No other people but the blind and visually-impaired with a certificate can buy the talking phone at sales shops of LG Electronics. "The LF1300 is the world's first mobile phone that is capable of reading books for the print-disabled, who otherwise could not enjoy them.This is not about making money but about continuing to put froth efforts to reduce the digital difference for the disabled," LG Vice President said. Its users can download about 300 audio books from the Internet site of LG Sangam Library to their phones for free in two ways. One is to access the digital library's Website on a computer designed for the blind to get the audio books and transfer them to cell phones. The other is to download the digital books directly with cell phones through the wireless net work by touching a hot key on the LF1300 phone. On top of its unique feature of reading books, the LF1300 is no worse than the pupular top-line phones in both outlooks and frnctionalities . The phone is armed with an MP3 player and a Bluetooth headset, enabling users to listen to the music or talk without a cord. The user interface of the LF1300 is also designed for the blind,enabling phone users to control it through a voice guidance system. However, because the phone's internal mimory of 17MB is small even for a single audio book file, which takes up 80MB on average, a high-volume external memory is a must for the talking book services. What can be learned from the passage?
|
[
"This is the first time LG company has done something for the disabled.",
"Phone users don't have to pay much to download the digital books.",
"LF1300 has a less attractive outlook than any other top-line phone.",
"The disadvantage of LF1300 is that it has too small internal memory."
] | 3D
|
computer_security
|
mmlu_labeled
|
There are more than 3000 languages in the world today, but only about ten are major languages of the world. Among them English is the most popular. More than 350 million people speak English as their first language. Major English-speaking countries are Britain, Australia, New Zealand, Canada and the USA. Another 400 million speak it as a second language. No one knows how many people speak English as a foreign language. They usually learn English as a school subject instead of learning it from their parents. Chinese is the only language with more speakers than English. This is because of the large population of China. English is the language for a better understanding between peoples of the world. It is also the language for business and science. Nearly half of the business deals in Europe are done in English, and more than half of the science magazines are in English. English is widely used in the world's computer network. And children should begin with English when they learn how to use computers. Through the English language peoples of different countries are able to work together and make things even better. The world's computer network takes English as _ .
|
[
"its only language",
"one of the main languages",
"a school subject",
"a foreign language"
] | 1B
|
college_computer_science
|
mmlu_labeled
|
Mitosis occurs in living things when a cell divides to produce two cells. Compared to the original cell, how many chromosomes are in each of the resulting cells?
|
[
"half as many",
"the same number",
"twice as many",
"an unpredictable number"
] | 1B
|
college_biology
|
mmlu_labeled
|
What is the mass of a guitar?
|
[
"8 tons",
"8 ounces",
"8 pounds"
] | 2C
|
natural science
|
scienceqa
|
Noah visited a park that had many oak trees. Which best describes the role of an oak tree in its ecosystem?
|
[
"Oak trees can live for a long time.",
"Oak trees have leaves that change colors.",
"Oak trees have strong branches and trunks.",
"Oak trees are a source of food and shelter for animals."
] | 3D
|
college_biology
|
mmlu_labeled
|
A Healthy Habits Survey shows that only about one third of American seniors have correct habits. Here are some findings and expert advice. 1.How many times did you brush your teeth yesterday? *Finding:A full 33% of seniors brush their teeth only once a day. *Step:Remove the 300 types of bacteria in your mouth each morning with a battery-operated toothbrush. Brush gently for 2 minutes, at least twice a day. 2.How many times did you wash your hands or bathe yesterday? *Finding:Seniors, on average, bathe fewer than 3 days a week. And nearly 30%wash their hands only 4 times a day-half of the number doctors recommend. *Step:We touch our faces around 3,000 times a day-often inviting germs to enter our mouth, nose, and eyes.Use toilet paper to avoid touching the door handle. And, most important, wash your hands often with hot running water and soap for 20 seconds. 3. How often do you think about fighting germs? *Finding:Seniors are not fighting germs as well as they should. *Step:Be aware of germs. Do you know it is not your toilet but your kitchen sponge that can carry more germs than anything else? To kill these germs, keep your sponge in the microwave for 10 seconds. What is found out about American seniors?
|
[
"Most of then have good habits.",
"About one third of them brush their teeth only once a day",
"All of then are fighting germs better than expected .",
"Nearly 30%of then bathe three days a week ."
] | 1B
|
nutrition
|
mmlu_labeled
|
This is a teacher's family . The father's name is Lake Smith . He's forty - four . The mother's name is Kate Smith . She's forty - two . The Smiths have a son , Jim , and a daughter , Ann . Jim is fourteen , and Ann is twelve . The son looks like his father , and the daughter looks like her mother . They are all in No.4 Middle School here . But the Smiths are teachers ; the son and daughter are students . Ann's mother's name is _ .
|
[
"Lake Smith",
"Kate Smith",
"Jim Smith",
"Ann Smith"
] | 1B
|
human_sexuality
|
mmlu_labeled
|
A pharmaceutical company has published the results of a limited experiment investigating the protective value of a chemical compound against high doses of UV rays on skin cells. It was later discovered that the results were not reproducible. What action could the company researchers have taken to avoid publishing erroneous results?
|
[
"Perform multiple trials.",
"Use only low levels of radiation.",
"Use different wavelengths of radiation.",
"Look into results of similar experiments before forming a hypothesis."
] | 0A
|
natural_science
|
ai2_arc_challenge
|
Some colors people see late at night could cause signs of clinical depression . That was the finding of a study that builds on earlier study findings. They show that individuals who live or work in low levels of light overnight can develop clinical depression. Doctors use the word "clinical depression" to describe severe form of depression. Signs may include loss of interest or pleasure in most activities, low energy levels and thoughts of death or suicide. In the new study, American investigators designed an experiment that exposed hamsters to different colors. The researchers chose hamsters because they are nocturnal, which means they sleep during the day and are active at night. The animals were separated into four groups. One group of hamsters was kept in the dark during their night-time period. Another group was placed in front of a blue light, a third group slept in front of a white light, while a fourth was put in front of a red light. After four weeks, the researchers noted how much sugary water the hamsters drank. They found that the most depressed animals drank the least amount of water. Randy Nelson heads the Department of Neuroscience at Ohio State University. He says animals that slept in blue and white light appeared to be the most depressed. "What we saw is that these animals didn't show any sleep uneasiness at all but they did mess up biological clock genes and they did show depressive sign while if they were in the dim red light, they did not." Randy Nelson notes that photosensitive cells in the eyes have little to do with eyesight. He says these cells send signals to the area of the brain that controls what has been called the natural sleep-wake cycle. He says there's a lot of blue in white light. This explains why the blue light and white light hamsters appear to be more depressed than the hamsters seeing red light or darkness. Researchers use hamsters in the experiment because _ .
|
[
"they are similar to humans in dealing with colors",
"they are easy to observe and study",
"they are sensitive to colors like human beings",
"they are active at night and sleep during the day"
] | 3D
|
college_medicine
|
mmlu_labeled
|
What information supports the conclusion that Peter inherited this trait?
|
[
"Peter and his father both have short hair.",
"Peter's parents were born with straight hair. They passed down this trait to Peter."
] | 1B
|
natural science
|
scienceqa
|
Sir John a British scientist who won last year's Nobel prize for medicine, said he had predicted at the time of his frog experiments that the successful cloning of a mammal would happen within 50 years.and that "maybe the same answer is appropriate" far the step to human cloning. Parents who lose children in accidents may be able to clone "copies" to replace them then. Although any attempt to clone an entire human would raise complex moral issues, the biologist claimed people would soon overcome their concerns if the technique became medically useful.Cloning was regarded with extreme doubts when it was first developed but became widely accepted after the birth of Louise Brown, the first "test tube baby" He said, "When my first frog experiment.s were done, an American reporter asked how long it will be before these things can he done in mammals or humans I said, 'Well, it could be anywhere between 10 years and 100 years-how about 50 year ?' It turned out that it wasn't far off the mark as far as Dolly was concerned.Maybe the same answer is appropriate." Sir John added that cloning a human being effectively means making an identical twin, and doctors would therefore simply be "copying what nature has already produced" The average vote on allowing parents of deceased children, who are no longer fertile , to create another using the mother's eggs and skin cells from the first child, thinking the technique was safe and effective, is 60 per cent in favor.The reasons for "no" are usually that the new child would feel they were some sort of a replacement for something. . What does the text mainly talk about?
|
[
"The life of Sir John,",
"Predict/on on human cloning.",
"Views on human cloning",
"Achievements in human cloning."
] | 1B
|
college_medicine
|
mmlu_labeled
|
Based on this information, what is Blaze's phenotype for the horns trait?
|
[
"not having horns",
"having horns"
] | 1B
|
natural science
|
scienceqa
|
What is the hottest topic at your school? In Hangzhou Yongjin Middle School, it's money. The school had an activity called "making a living" recently. About 800 Junior 1 and Junior 2 students were divided into 112 teams. They went out to make money by selling things. What did they choose to sell? Some sold newspapers; some chose bottled water; some sold environmentally friendly shopping bags and bamboo baskets. Huqi's team decided to sell educational books in front of the Children Activity Centre. They thought parents would like to buy books for their children. But unfortunately , they came across urban management officers . The officers asked them to leave. "We played hide-and-seek with the officers for the whole morning," said Hu. "Finally we gave up and moved to other place. Wang Yongyi and her team sold ice cream in a square. They didn't meet any officers. But few people were interested in what they were selling. The team then put up a board saying the money was to help the "Project Hope" for country kids. It worked. More people came to their stall. A foreigner even gave them 100 yuan. Meng Zhaoxiang and his team were luckier. They sold all their cakes in four hours, spending 39.5 yuan and getting back 80 yuan. "It was not easy to make the money," said Meng. "Some people just looked. Others just tasted but didn't buy. Now I know how hard it is for our parents to earn the money we need to lead happy lives." According to the passage, the students learn _ .
|
[
"it's impossible for them to make money",
"it's necessary for school to hold more activities",
"it's very important for them to make a living",
"it's not easy for their parents to make money"
] | 3D
|
high_school_microeconomics
|
mmlu_labeled
|
What do you do if you don't get into your first choice of university? That's the dilemma that faces thousands of British students every year. Many candidates turn to Clearing, the service that helps find university places for students at the last moment. If they don't have the marks to get into their first choice of institution, Clearing tells them about places available at other universities, though they might have to read another subject. But this year has seen a record number of people applying to university. This, combined with the weak economy, an uncertain job market and budget cuts at universities, means that _ than usual. Some sources say six students have applied for each remaining undergraduate university place. The British university admissions service, UCAS, says up to a quarter of this year's university applicants --- almost 190,000 people --- still don't have a place on a degree course. That's a rise of over 46,000 students from last year. Faced with these figures, some British students might be thinking of an interesting alternative: studying abroad. The University of Nottingham, for example,is offering places at its campuses in Ningbo, near Shanghai, and Kuala Lumpur, Malaysia. Students here can gain University of Nottingham degrees in business, accounting, engineering and English. Similarly, the University of Bolton says it has 'unlimited' places at its campus in the United Arab Emirates. Given the problems getting into university, the UK's Higher Education Minister, David Willetts, encourages students who haven't made the grade to consider alternatives to university, such as apprenticeships and studying at home. "There are a range of options available," he says. "People are able to reapply. They should think how they can spend their year adding that bit to their CV, which would help their application --- getting practical work experience or extra skills --- anything that strengthens their chances next year." But some experts say that rising university costs, poor long-term job prospects, and a drop in graduate recruitment mean it's the worst time to be a university student in the UK. According to UCAS, there are about _ university applicants this year.
|
[
"190,000",
"46, 000",
"236, 000",
"760, 000"
] | 3D
|
college_medicine
|
mmlu_labeled
|
Astronauts aboard the space station celebrated a space first on Wednesday by drinking water that had been recycled from their urine , sweat and water got from air. They said "cheers," clicked drinking bags and toasted NASA workers on the ground. The urine recycling system is needed for astronaut stations on the moon and Mars. It also will have NASA money because it won't have to ship up as much water to the station by space shuttles or cargo rockets. Besides, it's important as the space station is about to expand from three people living on board to six. The recycling system had been brought up to the space station last November by space shuttles Endeavour, but it couldn't be used until samples were tested back on earth. So when it came time to actually drink up, NASA made a big deal of it. The three-man crew stood holding their drinks and congratulated engineers in two NASA centres that worked on the system. "This is something that had been the stuff of science fiction," American astronaut Michael Barratt said before taking a small mouthful. "The taste is worth trying." The new system takes the combined urine of the crew from the toilet, moves it to a big tank, where the water is boiled off, and the vapor is collected. The rest of the urine is thrown away. Then the water vapor is mixed with water from air, and then it goes through filters . When six crew members are aboard it can make about six gallons from urine in about six hours. "Some people may find the idea of drinking recycled urine distasteful, but it is also done on earth, but with a lot longer time between urine and the tap," said Marybeth Edeen, the space station's national lab manager. The technology NASA developed for this system has already been used for quick water purification after the 2004 Asian tsunami. What did Edeen say about recycled urine and the recycling system?
|
[
"The taste of recycled urine is not as good as that of common water.",
"The recycling system has made a science fiction story come true.",
"The idea of drinking recycled urine makes astronauts feel unpleasant.",
"It takes a longer time on earth to make water from urine than in space."
] | 3D
|
astronomy
|
mmlu_labeled
|
Assume all other forces on Ben are balanced. Which statement describes the forces on Ben?
|
[
"The forces are balanced, so there is no net force on Ben.",
"The forces are unbalanced, so there is a net force on Ben."
] | 0A
|
natural science
|
scienceqa
|
Some students who took the International English Language Testing System(IELTS) exam in August and September, 2015 have had their results"withheld permanently", sending a strong signal that the examiners intend to stamp out cheating, some senior language tutors said. Yang Yuting, chief language training tutor at Amber Education, an overseas education consulting agency, said there have been a few cases in which candidates' IELTS results were canceled in recent years, leaving the students with no qualification but this is the first time he has heard that results, including those of some of his students, were"withheld permanently", meaning IELTS will not give the students their results, nor will they give them to others. Wang Xin, a senior student at the Communication University of China in Beijing, took an IELTS test on August 1 and the results were due within 10 working days. But she was then informed that her results were undergoing routine checks. Soon after that, she received an e-mail telling her that"a decision has been made to withhold this result permanently"and stating that Wang had"breached IELTS test rules and regulations". A number of students who took the test during the past two months in cities including Nanjing, Changsha and Guangzhou, have had the same experience. Many test takers said they were confused because they didn't know how they had breached the rules and regulations. IELTS authorities said in an e-mail toChinaDailythat IELTS takes the responsibility of providing test results very seriously. Results are only withheld in cases where there is strong evidence to suggest that the candidates have not observed IELTS regulations."In these cases, we are unable to guarantee that their result is a true reflection of their English language skills,"they said in the e-mail, although they gave no figures of how many students were involved."We regret any inconvenience this may cause, but these measures are essential to protect the value of the results for more than 2.5 million test takers every year. Hundreds of thousands of people take IELTS in China every year and the number of results which are permanently withheld is a tiny proportion ,"they said. Hu Min, president ofNew Channel International Education Group, an English-language tutorial agency in China, said a major cause of results being withheld might be an extreme imbalance in performance levels in the four sections of the test."For example, if a student scores very high in the reading and listening sections while performing poorly in writing and speaking, IELTS authorities may suspect that the test taker has memorized the reading and listening questions -- a practice that is very popular among Chinese test takers,"he said."IELTS authorities discourage such a practice and would determine that the scores can't reflect the real English level if test takers do so." What's the attitude of IELTS authorities towards those with an extremely imbalanced performance in the test?
|
[
"Supportive.",
"Forgiving.",
"Skeptical.",
"Indifferent."
] | 2C
|
college_medicine
|
mmlu_labeled
|
Don't you think your schoolbag is too heavy to bear? The e-schoolbag will free you from the weight. It is said that e-schoolbags are going to be brought into use in Chinese middle schools soon. An experiment with several hundred e-schoolbags will begin in seven cities: Beijing, Shanghai, Dalian, Shenzhen, Chongqing, Taiyuan and Shijiazhuang. And the e-schoolbags are going to cover all over China if the experiment proves to be successful. In fact, the e-schoolbag should perhaps be called an e-notebook. It is a small hand-held computer for school students. Heavy schoolbags have long been a serious problem for school students. The average schoolbag of middle school students weighs up to 5 kilos. But the e-schoolbag will change everything. It is much lighter than a usual schoolbag, weighing under 1 kilo. Also, it is no bigger than a usual book, but it can still hold all the things for study, such as a textbook, a notebook and exercise book. They could be made into chips that are as small as a stamp. The students can read the text page by page on the screen. They can still take notes using a special electronic pen. If they want to know the meaning or the pronunciation of a new word, or even e-mail their teachers, it's just a press of a button. In some foreign countries, it is becoming common. But it is hard to tell when people will receive this new form of study. Some say that e-textbooks can be easily broken, some say that it is not good to students' eyesight to look at the screen for long. But only time will tell. Which of the following statement is TRUE?
|
[
"All the students in China will be required to use this new schoolbag soon.",
"All the people think highly of e-textbooks.",
"E-notebooks are very convenient to students.",
"We will not make notes because the e-notebook can make all by itself."
] | 2C
|
college_computer_science
|
mmlu_labeled
|
The panda is one of the animals most in danger. There are about 1,000 pandas living in nature reserves today. Zoos and research centers look after about 160 pandas. Scientists are studying how they live and more baby pandas are born in the zoos. Pandas live in the forests and mountains of Southwest China. They mainly live on bamboo, and each panda needs to eat a lot of bamboo every day. The area of bamboo is becoming smaller for many different reasons, so pandas have less and less land to live on. Pandas don't have many babies, and baby pandas often die. The situation is becoming very serious. Our government is working hard to save pandas. There are more than 30 nature reserves to protect pandas but these are not enough. The government has made a new plan to help pandas. The nature reserves will be bigger and the bamboo will grow better. Then the pandas will have enough food to eat and enough places to live in. Pandas born in the zoos may go back to live in the nature reserves. Most people love pandas. The panda is one of the best-known animals in the world. It is the symbol for the World Wide Fund for Nature. The WWF works to protect all animals in danger, so the panda has become the symbol of all animals in danger. There is still a long way to go to save the panda. Think of other animals in danger such as tigers ,whales, turtles and elephant--we need to save the panda, and we need to save them, too. _ is the symbol for the World Wide Fund for Nature.
|
[
"The tiger",
"The panda",
"The elephant",
"The whale"
] | 1B
|
college_biology
|
mmlu_labeled
|
celestial objects are where in the earth's atmosphere
|
[
"inside",
"below",
"outside",
"over"
] | 2C
|
astronomy
|
mmlu_labeled
|
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 . People can't hear the dolphin's sounds because _ >
|
[
"they are above the water",
"they are under the water",
"they are very high",
"they are very low"
] | 2C
|
college_biology
|
mmlu_labeled
|
After an extra day in space,the crew of Discovery returned to Earth,landing at Edwards Air Force Base in California early on Tuesday morning.The shuttle and its crew spent two weeks in space,most of it aboard the International Space Station.It was the first flight of NASA's spaceshuttle fleet since February 2003,when the shuttle Columbia came apart while reentering Earth's atmosphere. NASA officials delayed Discovery's return for one day because of cloudy weather in Florida,where the shuttle was supposed to lanD. On Tuesday morning,mission controllers directed Discovery to a landing site in California,where the skies were clear.The crew members will have to wait until Wednesday to see their families when they all meet together in Houston at the Johnson Space Center. Discovery had a very busy mission in space,compared to past missions.The space shuttle docked with the International Space Station most of the journey,delivering badly needed supplies and repairing damaged parts.The crew spent a lot of time testing new repair techniques on their own shuttle,conducting three different spacewalks(where astronauts exit the space shuttle to do work outside).On the third spacewalk,astronaut Steve Robinson went underneath the shuttle to remove material sticking out from between the spacecraft's protective tiles. There were concerns in the last remaining days of Discovery's mission that a torn heat blanket--another shield against overheating in the space shuttle--may pose a problem to crew members. NASA officials and technicians worked on ways that the crew could fix the problem, but later decided it was not a risk. With the shuttle and its crew safely back on firm ground, NASA is hailing this mission, labeled STS114,as a huge success. "I hope this shows people that we're coming back," NASA spaceflight chief Bill Readdy said after Discovery's successful landing. "We've got some more work to do. We know what we need to do and we'll do it. Which of the following isn't included in the jobs of the shuttle Discovery?
|
[
"Delivering supplies to the International Space Station.",
"Conducting different spacewalks.",
"Testing new repair techniques.",
"Finding the cause why the shuttle Columbia came apart."
] | 3D
|
astronomy
|
mmlu_labeled
|
Water is of vital importance in a healthy diet and lifestyle. There are many health benefits of drinking water .It helps get _ out of our systems. It aids in the delivery of oxygen and nutrients .In fact, nearly every system in our bodies depends on water for proper functioning .But how can we tell whether the water we're drinking is healthy? As to tap water, it's relatively easy .If your water comes from a governmental source , the suppliers are required by law to provide annual water quality reports .If you have a well, you can have an authorized lab test your water .It may cost $100 or more, but it's a small price to pay for peace of mind . When it comes to bottled drinking water, it can be more difficult to know what you're getting .Start by checking the label or the bottle cap. Some may tell you that the water comes from a governmental source or "community water system", which means tap water .If the label doesn't give any information, you can call the bottler and ask .But don't be surprised if you get the runaround and are transferred to several different departments .Some states have a bottled water program that tracks bottled drinking water and can tell you the origin of the water as well as other information . Safe and healthy drinking water has become big business .Thousands of companies are competing for your hard earned cash , and some are not always honest about what their products offer .The initial investment in a home drinking water filtration system can seem expensive at first , but over time , it is usually less expensive than bottled drinking water .And with a water filter , you at least know where the water you drink comes from and how it is treated . Before going out and spending your hard earned money on bottled drinking water , it's a good idea to do some research .You're likely to find that a drinking water filtration system or purifier is a healthier choice and provides the best value as well . What's the author's attitude towards drinking bottled water?
|
[
"Concerned",
"Indifferent",
"Positive",
"Opposed"
] | 0A
|
nutrition
|
mmlu_labeled
|
We can slow down aging. That is the message Dr. Shen Ziyin wants to give the world. And the Chinese doctor claims that he has found an answer to the problems of aging. His solution is a herbal medicine to slow the process of aging. Dr. Shen Ziyin has been trained in Western medicine. At the same time he studied traditional Chinese medicine. And, he has been working for the past forty years to put together the best of both and find a cure for aging. He has taken a hint from the ancient Chinese medicine system called "Shen". According to Shen, it is the kidney which adjusts the functioning of the body as well as its aging process. It is responsible for the level of activity that the human bodies go through. Studies conducted by Dr. Shen show that herbal medicine based on the Shen system slows the aging process, says a report in the Telegraph newspaper. We notice that when people grow old, they have reduced strength, loss of hair, backache, weakness, wrinkles and so on. This happens because when people grow old, their bodies produce T-cells. These T-cells contain a particular substance called Fas. Fas makes the cells in the body destruct themselves. So the only way to slow down aging is to slow the production of T-cells in the body. This can happen if people eat low calorie food. Then the body is not active enough to produce extra T-cells. But, is going hungry all the time a good price to pay for staying young? This is where Dr. Shen's herbal medicine comes in. But how effective it will be, only time can tell. We can probably learn from the passage that _ .
|
[
"producing more low calorie food allows people to keep young",
"the more Chinese herbal medicine people drink, the better for health",
"people should try to quicken the production of T-cells in the body",
"it remains unknown how effective Dr. Shen's herbal medicine is"
] | 3D
|
college_medicine
|
mmlu_labeled
|
I am my mother's third girl. When I was born, the doctor gently explained to my mother that my left arm was missing, below the elbow(,). Then he gave her some advice, "Don't treat her any differently from other girls." And she did! There were five girls in our family and we all had to help out. Once when I was about seven, I came out of the kitchen, "Mum, I can't peel potatoes. I only have one hand." "You get back to peel potatoes, and don't ever use that as an excuse for anything again!" Of course I could peel potatoes--with my good hand and my other arm. "Jenny, if you try hard enough," she said, "you can do anything." Once in the second grade, our teacher had each of us race across the monkey bar . When it was my turn, I said no. some kids laughed. I went home crying. The next afternoon Mum took me back to the school playground. "Now, pull up with your right arm," she advised. She praised me when I made progress. I'll never forget when I was crossing the bar, the kids were standing there with their mouths open. It was the way with everything. Mum had the courage to face anything. and she taught me I could, too. What does the doctor's advice mean?
|
[
"My arm could be all right soon.",
"The other girls had the same arms as me.",
"My mom should look after me differently.",
"My mum could treat me the same as others."
] | 3D
|
human_sexuality
|
mmlu_labeled
|
How long is an ice skate?
|
[
"14 yards",
"14 miles",
"14 inches",
"14 feet"
] | 2C
|
natural science
|
scienceqa
|
Coffee is one of the world's most widely-enjoyed drinks. Now, a new research suggests that if you drink enough coffee, it might help you avoid certain kinds of cancer. Dr. Mia Hashibe of the University of Utah School of Medicine was interested in the connection between coffee drinking and certain cancers of the head and neck. Researchers have looked into this before, but without reaching any firm conclusions. She said, "So this finding from our new study was quite a surprise. We didn't really have any expectation of which direction it could go into." To sort out the confusion, Hashibe and her assistants used statistical ( ) techniques to, in effect, make one big study out of the earlier smaller studies. She explained, "Thanks to the earlier studies, we have a lot more power than earlier studies that looked at this. And we included 4,000 cancer patients who have cancer of the mouth and throat. And then 9,000 controls, people who do not have cancer. ' Those studies--in Europe and the United States--found that people who drank a lot of coffee were less likely to develop cancers of the mouth and throat. "We saw a protective effect for drinking more than 4 cups of coffee per day," Hashibe said. "This was the 40 percent decrease in risk. We did not see the same effect for drinking three cups or less per day." Mia Hashibe said there was a weak connection between cancer risk and drinking coffee without caffeine. And she and her assistants found no proof that drinking tea provided the same protection as drinking Coffee. Their research is published in the journal Cancer Epidemiology, Biomarkers & Prevention. Hashibe says it is not clear how coffee might protect drinkers from certain cancers. "There are a few chemicals that are known to be antioxidants in coffee. So we are thinking perhaps they are playing some sort of protective role against several cancers." This passage is probably taken from _
|
[
"a literature book",
"a travel journal",
"an old directory",
"a medical magazine"
] | 3D
|
college_medicine
|
mmlu_labeled
|
Why do some people _ when they drink alcohol? This effect is a common reaction to alcohol among East Asians. It affects about 36 percent of Japanese, Chinese and Koreans. For many, even a small amount of alcohol can cause unpleasant effects. Most commonly, their face, neck and sometimes their whole body turn red. People might also feel uncomfortable and sick to their stomach. They might experience a burning sensation, increased heart rate, shortness of breath and headaches. The cause is a genetic difference that they are born with called an ALDH2 deficiency . It prevents their bodies from treating alcohol the way other people do. But the effects might be more serious than just a red face. Researchers warn of a link between this condition and an increased risk of cancer of the esophagus from drinking alcohol. The more alcohol people with this deficiency drink, the greater their risk is. In Japan and South Korea, for example, many people have the deficiency but still drink heavily. Researchers found that these drinkers develop a form of esophageal cancer six to ten times more often than those without the deficiency. Esophageal cancer is one of the deadliest cancers. It can be treated when found early, but once it grows the chances of survival drop sharply. The researchers estimate that at least five hundred forty million people have the deficiency, about eight percent of the world's population. Philip Brooks is a researcher at the National Institute in the United States. He says it is important to educate people about the link between the alcohol flushing effect and esophageal cancer. He says doctors should ask East Asian patients about their experiences with facial flushing after drinking alcohol. Those with a history of it should be advised to limit their alcohol use. They should also be warned that cigarette smoking works with the alcohol in a way that further increases the risk of esophageal cancer. We can infer from the passage that _ .
|
[
"the ALDH2 deficiency may be passed on from generation to generation",
"about 36 percent of Japanese, Chinese and Koreans are heavy drinkers",
"unpleasant effects occur only when people with this deficiency drink a lot",
"only some East Asians have the ALDH2 deficiency"
] | 0A
|
college_medicine
|
mmlu_labeled
|
In a society where lung and breast cancers are leading causes of cancer death worldwide, early detection of the disease is highly desirable. In a new scientific study, researchers present astonishing new evidence that man's best friend, the dog, may have the ability to contribute to early cancer detection. Researchers show scientific evidence that a dog's extraordinary smelling ability can distinguish people with both early and late stage lung and breast cancers from healthy people. Researchers first discovered this in the case report of a dog warning its owner to the presence of a melanoma by constantly sniffing the skin lesion . Later studies published in major medical magazines proved the ability of trained dogs to detect both melanomas and bladder cancers. The new study is the first to test whether dogs can detect cancers only by sniffing the breath of cancer patients. In this study, five household dogs were trained within a short 3-week period to detect lung or breast cancer by sniffing the breath of cancer patients. The experiment consisted of 86 cancer patients (55 with lung cancer and 31 with breast cancer) and 83 healthy people. All cancer patients had recently been diagnosed with cancer and had not yet undergone any chemotherapy treatment . The dogs were presented with breath samples from the cancer patients and the healthy ones, captured in a special tube. Dogs were trained to give a positive identification of a cancer patient by sitting or lying down directly in front of a test station containing a cancer patient sample, while ignoring healthy samples. The results of the study showed that dogs can detect breast and lung cancer between 88% and 97%. Moreover, the study also proved that the trained dogs could even detect the early stages of lung cancer, as well as early breast cancer. The researchers concluded that breath analysis might become a potential of cancer diagnosis. The last sentence of the passage means_.
|
[
"doctors won't be worried about detecting cancers any more",
"dogs will be the only way to detect cancers",
"breath analysis can be used in diagnosing cancers in the future",
"dogs can use its smell to identify people"
] | 2C
|
college_medicine
|
mmlu_labeled
|
Dear Bewildered, Table manners are about being kind to and considerate of others.Having proper table manners is one way people judge others,and we don't want people to think that we are rude,do we ? Whether in a restaurant or in a home, here are some basic table manners for kids: 1Eat with a fork unless the food is meant to be eaten with fingers.Only babies eat with fingers. 2Sit up and do not hunch over your plate;wrists or forearms can rest on the table,or hands on lap. 3Chew with your mouth closed,No one wants to see food being chewed up.This includes no talking with your mouth full. 4Don't make any rude comments about any food being served.It will hurt someone's feelings.Always say thank you when you're served something. 5Eat slowly.It takes someone a long time to prepare the food,so enjoy it slowly.Wait about 5 seconds after swallowing to get another forkful . 6 Don't reach over someone's plate for something.Politely ask the dish to be passed to you. 7When eating at someone's home or being a guest of someone at a restaurant,always thank the host and tell him or her how much you enjoy it.At least say that you like the dinner ,for example, the dessert is great. Why should we eat slowly at the table ?
|
[
"To keep healthy.",
"To show how bad the food is.",
"To show how enjoyable we are.",
"To eat more food."
] | 2C
|
nutrition
|
mmlu_labeled
|
Modern man has cleared the forests for farmland and for wood, and has also carelessly burned them. More than that, though, he has also interfered with the invisible bonds between the living things in the forests. There are many examples of this kind of destruction. The harmfulness of man's interference can be seen in what happened many years ago in the forest of the Kaibab plateau of northern Arizona. Man tried to improve on the natural web of forest life and destroyed it instead. The Kaibab had a storybook forest of large sized pine, Douglas fir, white fir, blue and _ . In 1882 a visitor noted, "We, who ... have wandered through its forests and parks, have come to regard it as the most enchanting region it has ever been our privilege to visit." This was also the living place of the Rocky Mountain mule deer. Indians hunted there every autumn to gather meat and skins. The forest also had mountain lions, timber wolves and bobcats that kept the deer from multiplying too rapidly. Then, in 1906, President Theodore Roosevelt made the Kaibab a national game preserve. Deer hunting was forbidden. Government hunters started killing off the deer's enemies. In 25 years' time, 6,250 mountain lions, wolves and bobcats were killed. Before the program, there were about 4,000 deer in the Kaibab, by 1924, there were about 100,000. The deer ate every leaf and twig they could reach. But there was not nearly enough food. Hunting of deer was permitted again. This caused a slight decrease in the deer herd ,but a far greater loss resulted from starvation and disease. Some 60 percent of the deer herd died in two winters. By 1930 the herd had dropped to 20,000 animals. By 1942 it was down to 8,000. Engelmann spruce(Para. 2) is most likely the name of .
|
[
"an animal",
"a tree",
"a mountain",
"a game"
] | 1B
|
college_biology
|
mmlu_labeled
|
For hundreds of years, textbooks have put a world of knowledge in the hands of students. Paper textbooks are expensive to produce and expensive for schools to buy. Nowadays information changes so quickly that some textbooks are out of date almost before they're published. And as books are passed along from one student to the next, they get more highlighted, dog-eared, tattered, and worn. It's no secret that paper textbooks are heavy. But what you may not know is that backpack weight is an increasing problem among kids. Studies show that heavy backpacks can lead to both chronic back pain and poor posture -- and many kids are carrying a quarter of their body weight in textbooks. Today's students have grown up completely immersed in technology. iPod, iPad, computer -- these are the ways they interact with their world. They need a textbook made for the way they learn. iBooks textbooks on iPad offer a gorgeous, full-screen experience full of interactive diagrams, photos, and videos. No longer limited to static pictures to illustrate the text, now students can dive into an image with interactive captions, rotate a 3D object, or have the answer spring to life in a chapter review. They can flip through a book by simply sliding a finger along the bottom of the screen. Highlighting text, taking notes, searching for content, and finding definitions in the glossary are just as easy. And with all their books on a single iPad, students will have no problem carrying them wherever they go. McGraw-Hill, Pearson Education, and Houghton Mifflin Harcourt -- the publishers responsible for the majority of K-12 content in the US -- have created Multi-Touch textbooks available now from the iBookstore What may be talked about in the following passage?
|
[
"What's the K-12",
"The textbook transformation.",
"The use of the multi-Touch textbooks",
"3D Images"
] | 2C
|
college_computer_science
|
mmlu_labeled
|
Although Paris is often considered the city of romance, close to a million adults who call it home are single. Many single people say that France's capital is one of the most difficult places to meet people. The complaints of this lonely group have inspired a new phenomenon known as "supermarket dating." At Galerie Lafayette Gourmet,singles can shop for more than just the items on their grocery list. They can look for someone who has blue eyes, brown hair,and is 1.8 meters tall,or whatever may be on their romantic shopping list. At this Paris location,single people of all ages can schedule their shopping for Thursday nights between 6:30 and 9:00 p.m. When they walk through the door,they pick up a purple basket to advise that they are looking for love. They try to arrive early because the baskets disappear quickly, and then they have to wait in line for their turn to wander the store aisles . With purple baskets in hand, shoppers can consider their romantic options while they pick out their groceries. When they are ready to pay, they can go to the checkout line for singles who want to chat. Most of the people who look for love in the supermarket are skeptical of Internet dating. They know that it is easy to embellish one's appearance or to lie about one's age over the Internet. The supermarket, on the other hand,is considered a safe and casual environment in which to meet a potential match. In addition, what one finds in another's grocery basket can say a thing or two about that person's character or intentions. Buying pet food can be a man's way of showing a potential match that he has a sensitive side. Women who fill their baskets with low-fat food show their healthy style of living. These ways it's possible to find much more than food at a grocery store. What do many single people in Paris complain about?
|
[
"The difficulty in meeting people.",
"The idea of supermarket dating.",
"The items on their grocery list.",
"The inconvenience in shopping."
] | 0A
|
human_sexuality
|
mmlu_labeled
|
Select the vertebrate.
|
[
"bull ant",
"flower hat jellyfish",
"black orb weaver spider",
"box turtle"
] | 3D
|
natural science
|
scienceqa
|
If you're in your 30s, it is possible to defend your skin and body against the visible signs of growing older. 30s-this is when your youthful looks will start to slowly _ Time is the biggest issue for most men and women at this age because they struggle to balance work, relationships and young families. Unfortunately, juggling these parts of your life will start to show through fine lines and dull, tired skin. "This is the time to learn relaxation techniques like thinking and deep breathing to help reduce stress", says Helga Hefner, global educator of Aveda. Sleep is your best weapon during these years. A full eight hours of sleep is necessary for skin to look and perform its best and uninterrupted is the best type.. "Always make sure the head is raised above the body," says Dr Daniel Maes, senior vice-president of Estee Lauder Global Research and Development. This helps to avoid an accumulation of blood to the face and you will wake less puffy. If you sleep in an awkward position, you will wake with puffy eyes and lines on your face because of the constriction blood flow to the skin. Try and train yourself to sleep on your back, too, or you may notice lines forming on one side of your face. A lack of sleep is also linked to weight gain-the longer you are awake the more fuel your body will think it needs, so you may find yourself with an increased appetite. If you are struggling with sleep, try adding aromatherapy oils such as lavender or ylang ylang to your pillows or a bath before bed. Why are most men and women in their 30s busy?
|
[
"Because they feel little time left and value time.",
"Because they are busy making friends, and surfing the Internet.",
"Because they have to spend lots of time dealing with different problems in their life.",
"Because they only want to earn more money."
] | 2C
|
human_aging
|
mmlu_labeled
|
Hi, I am a Chinese boy. My name is Chen Haonan. My first name is Haonan. My last name is Chen. My English name is Dale. I like red. My telephone number is 178-267. I have a good friend. He is English. His name is Jim Smith. Jim is his first name and Smith is his last name. His Chinese name is Huang Qiang. His phone number is 362-597. My telephone number is _ .
|
[
"362-597",
"178-297",
"326-597",
"178-267"
] | 3D
|
elementary_mathematics
|
mmlu_labeled
|
Cellular respiration results in the production of adenosine triphosphate (ATP) molecules for energy. The most efficient form of cellular respiration would result in the production of ATP along with which substances?
|
[
"oxygen and energy",
"glucose and glycogen",
"lactic acid and alcohol",
"carbon dioxide and water"
] | 3D
|
natural_science
|
ai2_arc_challenge
|
How long is a parking space?
|
[
"20 inches",
"20 miles",
"20 yards",
"20 feet"
] | 3D
|
natural science
|
scienceqa
|
What is the temperature of a bowl of ice cream?
|
[
"37°C",
"37°F"
] | 1B
|
natural science
|
scienceqa
|
Which of the following most likely led to certain rocks having less friction?
|
[
"a babbling brook",
"people",
"a light wind",
"money"
] | 0A
|
high_school_physics
|
mmlu_labeled
|
First it was jogging. Then aerobics . Not too long ago, Americans discovered race walking. Now Americans are into a newfitnesscraze. They'retaking up bicycling. Over hills and down mountainsides and across quiet country roads, Americans are busily rolling along. The number of adults who ride for fitness is around 17 million, an increase of 70 percent over four years ago. Twice as many women as men are coming to the sport. Americans arefalling in love withbiking because it has speed, the benefitsofjoggingand beautiful scenery. Bicycling is a very appropriate sport, which is important to people who injured their knees while jogging or whosejointsareachingfrom aerobics. And biking is a real awakening for people who have been into race walking in the past. Race walking isas dull as watching paint dry. The most popular kind of bicycle for people who are new to the sport is the mountain bike, which has afixed framewith wide tires andupright handles. Mountain bikes also have manygears to make it easier to climb hills. About 5 million Americans ride mountain bikes, compared with 200,000 who rode them only five years ago. Costsrangefrom about $130 for abottom-of-the-linebicycle to more than $2,700 for an expensive bicycle. Mountain biking has attracted somepeoplewho race down the sides of mountainslike a bat out of hell. But most riders ride slowly and theyrarelyventurefar from home. The biking craze has brought an unexpected profit to clothing and bicycle accessory makers. Last year, bikers paid $ 630 million for biking clothes and accessories. Bicycling seems likely to continue its fantastic growth. Race walking is about as dull as watching paint dry because _
|
[
"race walking is a slow-moving sport",
"the number of adults who ride for fitness has grown 70 percent in four years.",
"it has speed, the benefits of jogging and beautiful scenery.",
"Americans are taking up bicycling."
] | 0A
|
nutrition
|
mmlu_labeled
|
Here are some tips on how to talk with your parents. Try to start your talk with something fun. This will make talking easier. For example, ask your parents questions about their day. They love this! Make it clear what you want to tell your parents If they have an opinion, let them finish and don't disturb. Ask them to do the same for you. Show them respect by listening to them carefully. Look at their eyes sincerely. Be honest. Honesty builds trust . Life is good when your parents trust you. If your parents don't understand, that's OK. It doesn't mean they don't love you pr they're not trying. Sometimes you have to explain things to them again or in a different way, When you finish the talk, thank them for listening,. Say something like, "thanks! That helped." It will let them know this is important to you, and make them want to do it more often. If you feel there are still things to talk about, set up a time with them to talk about it another day. What's the main idea of this passage?
|
[
"We should show respect to our parents.",
"It's important to trust our parents.",
"We should be thankful to our parents.",
"There are some ways to talk with our parents."
] | 3D
|
human_sexuality
|
mmlu_labeled
|
The Intel Science Talent Search is the top science competition for high school students in the US. The 40 finalists were honored in Washington last week. They met with scientists and politicians. President Obama welcomed them to the White House. These 40 students were selected from almost 2,000 contestants nationwide. They had to present original research to be judged by professional scientists. The students showed their research projects on large posters. The winners were announced on March 15th, 2011. Wendy Hawkins is executive director of the Intel Foundation, who says the 40 finalists represented excellence across many areas of science. Selena Li is from Fair Oaks, California. She wanted to find a more effective treatment for liver cancer. She began her research four years ago. A scientist at the University of California, Davis, taught her how to design and do experimental work in the laboratory. Ms. Li placed 5th in the Intel Science Talent Search and was awarded 30,000 dollars. Scott Boisvert lives near Phoenix, Arizona. He began using a laboratory at the University of Arizona at the age of 14. Over four years, he completed a project studying a fungus linked to the decrease in amphibians around the world. He was trying to find out if different chemicals and substances in the water could kill the fungus. He collected and tested water samples across Arizona. He says, "My results were able to identify a list of chemicals that were significant in the growth and in the movement of the fungus." He placed10th in the Intel competition and was awarded 20,000 dollars. Evan O'Dorney of Danville, California, won the top award of 100,000 dollars in this year's Intel Science Talent Search. For his mathematical project, he compared two ways to estimate the square root of an integer , a number with no fractional parts. Wendy Hawkins at the Intel Foundation says these young people represent the next generation of scientists who will help shape America's future. Who will be probably engaged in math study in the future and become a mathematician?
|
[
"Wendy Hawkins.",
"Selena Li.",
"Scott Boisvert.",
"Evan O'Dorney"
] | 3D
|
college_mathematics
|
mmlu_labeled
|
Drinking green tea is known to be good for you. Some people suggest drinking 2-3 cups of it a day, and I would say at least one is highly advisable. As many people have already known, tea is filled with powerful antioxidants that will help stop free radicals . Free radicals are harmful to our systems in that they can lead to cell and DNA change, even cell death, and can lead to cancer. Green tea has been drunk throughout Thailand, China, India and Japan for centuries. It is known in these places that green tea can help improve digestion and mental clearness and lower one's blood sugar. It can also help control bleeding, so that injuries can be cured more quickly. Some studies even suggest that drinking green tea on a regular basis can help a person lose weight. Green tea can help a person feel fuller throughout the day with its pleasant smell and taste, and just taking the time to smell it can help ease one's hunger. In short, both studies of green tea and its history show that it is a great thing to drink for your health. The purpose of the passage is to tell us _ .
|
[
"how to stay healthy",
"what kind of tea one should drink",
"green tea helps one stay slim",
"drinking green tea is healthy"
] | 3D
|
nutrition
|
mmlu_labeled
|
Did you know that a turtle can lay 12 eggs in one minute? A large sea turtle lays around 150 eggs at a time. She lays all these eggs in just a few minutes. Large sea turtles live in the warm seas of the world. Except for when they lay their eggs, they spend their whole lives in the water. When it is time to lay their eggs, the females swim to land. They usually return to the place where they themselves were born. How they find their way back there is unknown. When they reach shore, the big, heavy turtles crawl slowly up to the high water mark. Using their flippers, they pull themselves along the sand. They must struggle like mountain climbers. When they finally reach dry sand, they rest before beginning the difficult task of laying eggs. The turtles lay the eggs in deep holes and cover them with warm sand. The sand protects the eggs from harm. Then the females leave them. After a few weeks, if you happened to be walking along the beach, you might see the sand begin to shake. You may see tiny black balls coming out of the sand. The tiny heads of baby turtles! The first sentence lets us know that this passage is about _ .
|
[
"turtles",
"oceans",
"time",
"speed"
] | 0A
|
college_biology
|
mmlu_labeled
|
Smoking is the single worst thing you can do for your health. Fortunately, it's never too late to get the benefits of quitting. If you've tried to quit before and failed, it's time to make up your mind and try again. Smoking is responsible for one of every five deaths. That includes 29% of all cancer deaths, 87% of all lung cancer deaths, and nearly 20% of all deaths from cardiovascular disease. But long before smoking kills you, it ages you. You can see for yourself that smoking accelerates the drying and wrinkling of the skin. But there are less obvious effects as well. Indeed, smoking takes years away from your life. Nearly half of all chronic smokers die an average of 20 to 25 years before their time. Besides an early death from cancer or heart disease, smoking can cause lung disorders. People who smoke over a pack a day have almost three times the risk of contracting pneumonia than that of nonsmokers. By lowering levels of estrogen in men and women, smoking speeds bone less. If a woman smokes a pack of cigarettes every day, she will enter menopause with 5 to 10% less bone mass than a nonsmoker. The good news is that no matter what your age is or how long you've smoked, you'll live longer if you quit today. The Coronary Artery Surgery Study examined nearly 2,000 long-term smokers over age 54. Those who quit had significantly lower death rates six years later than those who didn't. Even the oldest ex-smokers had a higher survival rate. Not only will live longer if you quit, you'll feel better, breathe easier, and find that you have more energy. You'll have fewer respiratory infections,headaches, and stomachaches. What's more, you'll save money. Your clothes and breath won't smell unpleasant any longer. And your habit won't annoy--or threaten the health of --the people who live and work with you. According to the passage, the percentage of deaths due to smoking is _ .
|
[
"20%",
"25%",
"29%",
"87%"
] | 0A
|
college_medicine
|
mmlu_labeled
|
A 33-year-old financial analyst in California recently quit his job to devote himself to an unpaid job teaching math on the Internet, and his lessons are reaching almost 100,000 people a month. Salman Khan's voice is heard every day on the net -- by tens of thousands of students around the world who are hungry for help learning math. He has posted 1,200 lessons on You Tube --lessons that appear on an electronic blackboard, which range from basic addition to advanced mathematics for science and finance. And they are free. Khan lives in Silicon Valley, with his wife, a doctor, and their new baby. He got the idea for his "Khan Academy" four years ago, when he taught a young cousin how to convert kilograms to grams. With Khan's help, the cousin got good at math, and Khan began a new career. Now, Khan records his lessons himself, but he never goes on camera. "It feels like my voice in their head. You're looking at it and it feels like someone's over your shoulder talking in your ear, as opposed to someone at the blackboard, which is distant from you," he said. When Springfield High School in Palo Alto, California invited Khan to speak in person--he immediately connected to the students there. The idea of short lessons that can be played over and over again attracted high school senior Bridget Meaney. She says she had trouble with math in the seventh grade. "I think the teachers are good, but they can't teach at a speed that's perfect for everyone," she said. "I like the idea of learning something in class but then going back and pressing pause or rewind and actually getting a deeper understanding of it." Originally, Khan kept his lessons short because of YouTube restrictions. Now, he thinks short is better. "Education researchers now tell me that 10 minutes is how long someone can have a high level of concentration. And anything beyond that and your brain switches off," he said. For Khan, teaching math, science, and finance is just the beginning. He says he's ready to expand his YouTube site to include other subjects as well. What gave Khan the idea of teaching math online?
|
[
"His success in helping his cousin learn math.",
"His discovery that many students found learning math difficult.",
"A suggestion made to him at a local high school.",
"His interest in Internet teaching."
] | 0A
|
college_computer_science
|
mmlu_labeled
|
Our body clock,or natural body rhythm,influences our energy and alertness.Paying attention to it can help us choose the suitable time of day when we best perform specific tasks. The reality,however,is that most of us organize their time around work demands,school deadlines,commuting or social events.Doing whatever your body feels like doing is a luxury in today's fast-paced modem society. But that doesn't mean it isn't worth trying.Obeying our body clock has significant health benefits.Disrupting our natural body rhythm,on the other hand,has been linked to problems such as depression,obesity,or headache,says Steve Key,a biology professor. When the body clock can synchronize(......)the rhythms of its natural processes,it "gives us an advantage in daily life",says Key. According to him,when it comes to cognitive work,most adults perform best in the late morning.As our body temperature starts to rise just before awakening in the morning and continues to increase until midday,our memory,alertness and concentration gradually improve. However,he adds,our ability to concentrate typically starts to decrease soon thereafter.Most of us are more easily distracted between noon and 4 pm. Alertness also tends to fall after eating a meal and sleepiness tends to peak around 2 pm,making that a good time for a nap. Surprisingly, tiredness may increase our creative powers.For most adults,problems that require open ended thinking are often best dealt with in the evening when they are tired, according to a study in the journal Thinking & Reasoning. When choosing a time of day to exercise,paying attention to your body clock can improve results.Physical performance is usually best from about 3 to 6 pm,says Michael Smolensky,a professor of biomedical engineering. Of course, not everyone's body clock is the same,making it even harder to synchronize natural rhythms with daily plans. Which of the following can be the suitable title for the passage?
|
[
"What is natural body rhythm?",
"Natural body rhythm is good for us.",
"Something about natural body rhythm.",
"The latest research about natural body rhythm."
] | 2C
|
college_medicine
|
mmlu_labeled
|
Marjorie Baer used to joke about her retirement plans.She wasn't married and had no kids, but she didn't intend to be alone--she and all her single friends would move into a fictional home she called Casa de Biddies.Instead, Baer developed terminal brain cancer when she was 52.But just as she'd hoped, her friends and family provided her with love and care to the end. Ballance was only the first of Baer's friends who became her unofficial caregivers.With her brother Phil Baer from Los Angeles, they worked out a system to watch over their friend and allow her to keep some of the privacy and independence she cherished. Baer's good friend Ruth Henrich took Baer to doctors' appointments and helped her deal with all the aspects of life --answering machines, TV controls, and even phone numbers.After Henrich sent out an e-mail request, a group of volunteers signed up to ferry Baer back and forth to radiation therapy .Others in Baer's circle offered up particular talents: A nurse friend helped Baer figure out how to get what she was due from Social Security and her disability insurance; a lawyer pal helped Baer with her will; a partner who was an accountant took over her bills when she could no longer manage them."There was this odd sense that the right person always showed up," says Ballance.Their arrangement worked remarkably well. Unmarried women are one of the fastest-growing groups in America; experts are concerned about how care-giving will be managed for them as they age.If the experience of Baer's friends is a guide, _ .It's already making it possible to create communities of caregivers who may have only one thing in common: the person who needs their help.On personal "care pages" set up through services such as Lotsa Helping Hands, friends and family members can post a list of tasks that need to be done, volunteer to do them, and keep updated on the person's condition.As Baer's cancer progressed, for example, her friends set up a page on Yahoo! where people could sign up to deliver meals or do errands . Catherine Fox, one of the friends who were present when Baer died, was deeply affected."It was so comforting to know that if you're willing to ask for help, the generosity of family and friends can be phenomenal .It makes me feel secure and hopeful to know that help is there when you need it." The most appropriate title of this passage should be _ .
|
[
"On her own, but not alone",
"A friend in need is a friend indeed",
"A new practice of American government",
"A phenomenal advantage of the Internet"
] | 0A
|
college_medicine
|
mmlu_labeled
|
Mice, rabbits, bobcats, and squirrels all live in a brush ecosystem. Which animal would have the most difficult time surviving if the population of the other three animals continued to decrease?
|
[
"mouse",
"squirrel",
"bobcat",
"rabbit"
] | 2C
|
college_biology
|
mmlu_labeled
|
A team of researchers from Oxford University has demonstrated a self-driving car that is different from such cars being tested by Audi, Ford, etc. It' s much cheaper because it's based on off-the-shelf technology and controlled by an ordinary iPad. Instead of using GPS to understand the location, the car learns routes when a person is driving, and then asks after it's got it down, if the driver would like the computer to take over. As time passes, it's becoming very clear that people believe computers would be better drivers than humans. This has been proven by extensive research that indicates that computers are able to react more quickly to driving conditions, make smarter decisions, don't take risks, and don't make mistakes in concentration. They don't drink either, of course, which means accidents due to drunk driving could be reduced dramatically if the computer could take over when someone needs to get home from the bar. And the team says drivers don't need their cars to know everything about every road, condition or possible danger. Instead, they just need to know how to get from one point to another, and to do a good job of it when asked. To that end, the researchers have added cameras, lasers, a central computer to process information and a regular iPad. In practice, the car would learn how to get to and from places that the driver frequents, such as their work place, the local pub or grocery store. Once it has it down, the computer asks the driver if they' d like a rest. If so, they simply tap the iPad, and the car takes over. It' s very simple and doesn't require nearly the same number of devices as those being tested by other car companies. The researchers say people might be able to get the total price of the system below a hundred dollars. And of course, the iPad can be lifted out and carried away for other purposes when not being used as a driver assistant. In which column of a newspaper can we find this passage?
|
[
"Opinion",
"Fashion",
"Technology",
"Education"
] | 2C
|
computer_security
|
mmlu_labeled
|
It's impolite to spit out the first bite of your dinner. But to a type of Australian snake, this rude behavior is a matter of life and death. The snake, called a floodplain death adder , eats two types of frogs that are hard to stomach. The frogs produce chemicals to defend them from predators . One of these species, the Dahl's frog, can kill a snake that tries to eat it. The other species, the marbled frog, is less dangerous but still tough to eat. When attacked, _ produces a glue like substance. Leaves and branches get caught up in this material, making a big sticky mess that gets in the way of anything trying to swallow it. A marbled frog can even get stuck on the head of an attacking snake. Both frogs have good defense methods. But the floodplain death adder knows how to get around each of them. Floodplain death adders quickly strike these frogs, using their poisonous teeth to inject poison. But then, instead of swallowing their dinner immediately, the snakes sit back and wait for their preys to become safe to eat. That's because both the Dahl's frog's protective toxin and the marbled frog's glue break down over time. After a while, the frog toxin is no longer poisonous and the glue is no longer sticky. The two substances break down at different rates, and floodplain death adders seem to know the difference, And adder waits for a different length of time depending on the species of frog it just struck. The stickiness of the marbled frog glue decreased by as much as two-thirds after just 10 minutes. And that's just about how long an adder waits before eating a marbled frog. On the other hand, the snakes wait for about 40 minutes before eating a Dahl's frog. That's enough time for the frog's toxin to break down into harmless substances. But even a quick strike gives a taste of the Dahl frog's toxin. After striking such a frog, a floodplain death adder thrashes around and lies on its back with its mouth open, It's like the snake has just had a mouthful of chili pepper. By comparison, when given frogs that have no chemical defenses, floodplain death adders eat their prey immediately after striking. Snakes, despite the fact that they've got this tiny pea-size brain are clearly capable of recognizing what kind of frog they've bitten. What's the floodplain death adder's method to make the frogs safe to eat ?
|
[
"They thrash around with their mouths open",
"They sit back and wait for their preys to become safe to eat",
"They inject poison on the preys and wait for the breaking down of their toxin and glue before eating them",
"They quickly strike these frogs"
] | 2C
|
college_biology
|
mmlu_labeled
|
What information supports the conclusion that Lexi inherited this trait?
|
[
"Some people use a hair dryer to straighten their hair. But Lexi and her brothers have naturally straight hair.",
"Both of Lexi's biological parents have naturally black hair.",
"When she was younger, Lexi wore ribbons in her naturally black hair."
] | 1B
|
natural science
|
scienceqa
|
FIVE Americans _ the three Nobel Prizes in Physics, Chemistry, Physiology or Medicine last week. It was the first American sweep of the Nobel science prizes since 1983. It's rare for Americans not to receive any of the science prizes, especially in recent years. In 2004, seven Americans were among the 10 laureates for the science prizes. Last year, the figure was five out of 10. The huge sums of money invested in scientific research is one factor that has helped many Americans to win awards. Another reason is the vast number of researchers working in the US. American universities also often have a more "creative university environment"where people can focus on research for a long period without any pressure, said Anders Liljas, member of the Nobel Committee. New hope for AIDS patients? AMERICAN scientists Craig Mello (top) of the University of Massachusetts Medical School and Andrew Fire (above) of Stanford University School of Medicine won the Nobel Prize for Physiology or Medicine last Monday. Their discovery is a process that researchers hope to use to silence disease-causing genes . It offers new ways for disease treatment. Scientists now hope to develop a new technique that could be used to treat diseases, such as cancers, AIDS and Parkinson's disease. Like father, like son? AS the son of a Nobel Prize winning professor, Roger D. Kornberg (left) had a lot to live up to. But, nearly half a century after his father, won his award, Kornberg, 59, a Stanford University professor, won his own last Wednesday: The Nobel Prize in Chemistry. His research into how cells read their genes is very important. It could help lead to the development of new drugs to fight cancer , heart disease and other illnesses, experts said. First light of the universe TWO Americans won the Nobel Prize in Physics last Tuesday for measuring the oldest light in the heavens. It is considered as "one of the greatest discoveries of the century". It convinced scientists that the Big Bang theory of the universe's origin is correct. George F. Smoot (top), 61, of Lawrence Berkeley National Laboratory in Berkeley, and John C. Mather (above), 60, of NASA's Goddard Space Flight Centre, will share the US$1.4 million prize for their work. Beginning in 1989, they measured weak light that originated as early as 380,000 years after the Big Bang. Which of the following is TRUE according to the passage?
|
[
"Craig Mello and Andrew Fire have found the way to cure cancers, AIDS and Parkinson's disease.",
"Roger",
"George F. Smoot will get US$1.4 million prize for his work.",
"Kornberg is the youngest of the Nobel Prize owners of this time."
] | 1B
|
college_medicine
|
mmlu_labeled
|
June 11,2013 was another big day for Chinese space exploration. Shenzhou X, China's fifth manned spacecraft, was sent into space. Three astronauts, Nie Haisheng, 49, Zhang Xiaoguang, 47, and Wang Yaping, 33, stayed in space for 15 days. Tiangong-1 is China's first space module . It was sent into space in 2011. It will be developed into a large space station around 2020. A space station is a lab for scientific studies.Shenzhou X performed its first docking with Tangong-1 on June 13. It docked twice during the 15 days. The US, Russia, Japan, Canada and Europe are working together on the International Space Station (ISS).China wanted to join the ISS but was refused by the US. China decided to build its own space station. Shenzhou X flew around the Tianggong-1 lab for the first time. This was to make sure that spacecraft could dock from more than just one direction. The astronauts carried out repair work and did experiments on the Tiangong-1. Teaching from space Wang Yaping, China's second woman astronaut, taught high school and primary school students about space science. Wang talked about how things move in a micro-gravity environment. This helped the students better understand some physics ideas, like Newton's Law. The lessons aimed to encourage more students to learn about the universe and science. Life up in space The three astronauts followed a work and rest schedule that is similar on the Earth. They had Chinese dishes, such as Kung Pao Chicken and fried rice. The food was kept in special bags. At the time of the Dragon Boat Festival, they had Zongzi. Tiangong-1 is _ which was sent into space in 2011.
|
[
"a space station",
"a manned spacecraft",
"a space module",
"a space lab"
] | 2C
|
astronomy
|
mmlu_labeled
|
How long is a potato?
|
[
"8 inches",
"8 feet"
] | 0A
|
natural science
|
scienceqa
|
Complete the sentence.
Mixing food coloring into frosting is a ().
|
[
"physical change",
"chemical change"
] | 0A
|
natural science
|
scienceqa
|
Lizards are unusual,but they can make good pets because most of them are small and easy to care for. They do not make loud noises,and they do not need to go for walks or take baths. Of course, some lizards make better pets than others. One of the most popular lizards in pet store is the bearded dragon. Bearded dragons are active during the day and do not mind people holding them. Geckos are another popular pet lizard. They are a little more difficult to care for. Geckos are active at night and need a warm place to live.Like bearded dragons,they can be held by their owners.Both of these lizards can live ten years or more when they are well cared for. Two lizards that are bad choices for pets are iguanas and chameleons. Iguanas can grow to be almost two meters(nearly six feet),so they need a big space to live in.They can also bite or scratch their owners.Chameleons do not hurt their owners,but they are quite difficu1t to care for. While iguanas can live up to twenty years,chameleons do not live very long. Most do not live more than five years. Which lizard would be good for a child to watch and play during the day?
|
[
"A gecko",
"A chameleon",
"A bearded dragon.",
"An iguana."
] | 2C
|
college_biology
|
mmlu_labeled
|
A man enters a store to buy milk. He walks out of the store with milk. That is all-- milk. At the same time, a woman enters the same grocery store also to buy milk. She buys it. But, she also buys chicken and lemons to make dinner that night. Then she remembers to buy food for her son to eat at school. She also gets a bottle of wine for drinks with friends and a birthday card for her husband's niece. Then she gets coffee for breakfast, ice cream for dessert and remembers stamps to mail the bills. And don't forget soap for the bathroom. And that is the difference between the female and male brains simply explained in a grocery store. Generally speaking,men do one thing at a time. Women do many. Doing many things at one time is often called "multi-tasking", a very popular word these days. Now scientific research supports this theory about male and female brains. A recent study has confirmed what we have known all along--men and women think differently. Scientist at the university of Pennsylvania studied brain images of 949 people aged from 8 to 22 years old. They found that male brains have more connections on one side of the brain, or hemisphere. In female brain, they found more activity and connections between the right and left sides of the brain. The left side of the brain is known as the side of "reason" The right hemisphere is known as the "creative" side. Regina Verma is a professor at the University of Pennsylvania. She co-wrote the report. She says when women are asked to do something difficult they might use different parts of the brain. Men, she adds, generally use just one side of the brain. As a result, men generally deal directly with a problem. There is a strong connection between the "understanding" and the "action" parts of their brains. Women, however, might include other parts of the brain, like the part connected with reason and the part connected with sensitivity when solving a problem. Women take a less direct path to find a solution. Dr. Venma warns that the study should not lead anyone to expect some behaviors from women and others from men. When asked to deal with a problem, _ .
|
[
"men tend to take action straight",
"women tend to take action straight",
"women tend to use a single part of the brain",
"men tend to use connected parts of the brain"
] | 0A
|
human_sexuality
|
mmlu_labeled
|
safety goggles are used for protecting the eyes during
|
[
"sleeping",
"persuits of knowledge",
"dancing",
"singing"
] | 1B
|
computer_security
|
mmlu_labeled
|
Besides the pain, what bothered Yang Zhihong the most during an operation were the female nurses in the operation room. "It couldn't be more embarrassing," said the 23-year-old senior student from Beijing Foreign Studies University, who underwent an operation at Peking University Third Hospital in March, for reasons of hygiene. "I just felt uneasy with women around me and my pants off, even if they're there to help with my operation." That wasn't the first time Yang thought there should be more male nurses in the hospital. "For a physical examination on private parts, it would be better to be helped by nurses of the same gender," he added. While their numbers have increased in recent years, male nurses still only account for less than 1% of all nurses in China, according to the Ministry of Health. In the United States and many European countries, the percentage of male nurses is around 10%, Beijing Peking University First Hospital head nurse Deng Jun said during a forum focusing on male nurses. "We need to come up with more male nurses to meet the deficiency for male nurses in China," he said. "The lack of male nurses is mainly due to the misconception that a nursing job is a disgraceful job requiring no technical skills with a comparatively poor salary," Deng said. "People hold the belief that men are too clumsy to clean a patient's body or take care of the sick. However, male nurses possess some unique features." In some high-pressure and fast-paced working environments, such as operating rooms or emergency rooms, male nurses definitely have an advantage as well, Deng said. "It's difficult for a female nurse to turn over a paralyzed patient by herself in an intensive care unit. And during natural disasters, earthquakes for example, male nurses also play a vital role in rescuing victims and providing healthcare in a dangerous environment." Men make up only 1,900 of the 69,000 registered nurses in the capital, and they mainly work in the departments that are "labor-demanding", according to the Beijing Municipal Health Bureau. "I've seen so many male nurses quit or resign in the past few years," he said. "With a basic salary of around 1,500 yuan, most male nurses simply find themselves cornered." "Many students even reject their identity as a male nurse, out of the long-existing discrimination," Zhao said. "But nursing truly needs the male because of their rational thinking, physical strength and calmness in face of emergency and disasters." Nothing will change "until the public changes its attitude and nurses' pay is raised", he said. According to the passage, Yang Zhihong _ .
|
[
"felt embarrassed to talk with women in hospital",
"felt disappointed about the female nurses' work",
"felt it embarrassing to have such an operation",
"felt shy to be served by female nurses during the operation"
] | 3D
|
college_medicine
|
mmlu_labeled
|
the sun transfers solar energy from itself to the Earth through
|
[
"electricity",
"water",
"rocks",
"sunradiation"
] | 3D
|
high_school_physics
|
mmlu_labeled
|
Today's drivers may feel shocked by the high price of petrol when they drive to the gas station. However, the car industry has the technology to solve _ . It's the hybrid car . What is a hybrid car? Any car that uses two or more sources of power is a hybrid car. Most hybrid cars on the road right now are petrol-electric hybrids. The petrol-electric hybrid car is just what it sounds like -- a cross between a petrol-powered car and an electric car. A gas-powered car has a fuel tank , which supplies petrol to the engine. An electric car, on the other hand, has a set of batteries that provides electricity for the car. To be useful to you or me, a car should be able to run at least 300 miles (483 km) before refueling, be capable of being refueled quickly and easily and fast enough to keep up with the other traffic on the road. A petrol car meets these requirements but produces a large amount of pollution. An electric car, however, produces almost no pollution, but can only go 50 to 100 miles (80 to 161 km) between recharging . And the problem has been that the electric car is very slow and inconvenient to recharge. A petrol-electric car combines the advantages of the two power sources into one system that uses both gas power and electric power. Some experts believe that the hybrid car is "the next generation of smart cars". A hybrid car can go up to 50% further than a traditional car can on the same amount of gas! It saves driver's money on gas and cuts air pollution! Some experts believe that the hybrid car will have a large market in future because _ .
|
[
"it is just powered by renewable energy",
"it saves money and is eco-friendly",
"it goes further than a traditional car",
"it is safe, cheap and produces no air pollution"
] | 1B
|
electrical_engineering
|
mmlu_labeled
|
Course A: Understanding computers 1. A twelve-hour course for people who do not know very much about computers but need to learn about them. You can learn what computers are, what computers can do and cannot do, and how to use them. 2. Course fee: $75, from June 1 to June 28, 9~12am every Sunday. 3. Equipment fee: $10. 4. Teacher: Joseph Saunders, professor of computer science at New Urban University, with twelve years of experience in computer field. Call 67801642 or 67801643 for more information. Course B: Learning to speak French 1. A course with a small class of less than 20 people, twice a week. Your French level is tested in the first class. Then you can begin practicing at one of eight different skill levels. This allows you to learn at your own speed, and prepares you to learn through situations of real life with a funny and easy method. 2. Course fee: $200, from June 1 to June 25, 4~7pm every Monday and Thursday. 3. Personal tutoring fee: $100. 4. Teacher: From the first day on you can have your own personal French teacher that corrects your exercises and assists you along the course, who has successfully taught French course before. Phone 67353019 for more information. Course C: Learning to swim 1. A course for people who have interest in swimming. We offer morning and afternoon classes, where swimming knowledge will be taught. Then you can gain swimming skills through practicing in water. 2. Course fee: $150, from June 9 to June 29, 10am~4pm every Tuesday and Friday.. 3. Personal tutoring Fee: $100 4. Teacher: Teachers from sports college and experienced swimming-loves. Very close to the Central Park. For further information call 67432308. If you want to take Course A, you need to go _ learn something about computers.
|
[
"twice every week",
"three times a week",
"four times altogether",
"every Sunday afternoon"
] | 2C
|
college_computer_science
|
mmlu_labeled
|
Amyotrophic lateral sclerosis(ALS) is a progressive neurodegenerative disease that affects nerve cells in the brain and the spinal cord. Motor neurons reach from the brain to the spinal cord and from the spinal cord to the muscles throughout the body. The progressive degeneration of the motor neurons in ALS eventually leads to _ death. When the motor neurons die, the ability of the brain to initiate and control muscle movement is lost. With voluntary muscle action progressively affected, patients in the later stages of the disease may become totally paralyzed. A-myo-trophic comes from the Greek language. "A" means no or negative. "Myo" refers to muscle, and "Trophic" means nourishment--"No muscle nourishment." When a muscle has no nourishment, it "atrophies" or wastes away. "Lateral" identifies the areas in a person's spinal cord where portions of the nerve cells that signal and control the muscles are located. As this area degenerates it leads to scarring or hardening ("sclerosis") in the region. As motor neurons degenerate, they can no longer send impulses to the muscle fibers that normally result in muscle movement. Early symptoms of ALS often include increasing muscle weakness, especially involving the arms and legs, speech, swallowing or breathing. When muscles no longer receive the messages from the motor neurons that they require to function, the muscles begin to atrophy (become smaller). Limbs begin to look "thinner" as muscle tissue atrophies. What Types of Nerves Make Your Body Work Properly? The body has many kinds of nerves. There are those involved in the process of thinking, memory, and of detecting sensations (such as hot/cold, sharp/dull), and others for vision, hearing, and other bodily functions. The nerves that are affected when you have ALS are the motor neurons that provide voluntary movements and muscle power. Examples of voluntary movements are your making the effort to reach for the phone or step off a curb; these actions are controlled by the muscles in the arms and legs. The heart and the digestive system are also made of muscle but a different kind, and their movements are not under voluntary control. When your heart beats or a meal is digested, it all happens automatically. Therefore, the heart and digestive system are not involved in ALS. Breathing also may seem to be involuntary. Remember, though, while you cannot stop your heart, you can hold your breath-so be aware that ALS may eventually have an impact on breathing. Although the cause of ALS is not completely understood, the recent years have brought a wealth of new scientific understanding regarding the physiology of this disease. While there is not a cure or treatment today that halts or reverses ALS, there is one FDA approved drug, riluzole, that modestly slows the progression of ALS as well as several other drugs in clinical trials that hold promise. Importantly, there are significant devices and therapies that can manage the symptoms of ALS that help people maintain as much independence as possible and prolong survival. It is important to remember that ALS is a quite variable disease; no two people will have the same journey or experiences. There are medically documented cases of people in whom ALS 'burns out,' stops progressing or progresses at a very slow rate. What can we learn from the passage _ ?
|
[
"As motor neurons degenerate, they can no longer send impulses to the muscle fibers.",
"If muscles can't receive the messages sent by motor neurons, limbs begin to look \"thinner\".",
"The heart and the digestive system are also affected by ALS.",
"the cause of ALS has been completely understood."
] | 1B
|
college_medicine
|
mmlu_labeled
|
Li Peng is a good student. On weekdays he gets up at six in the morning. He has breakfast at home. Then he reads English from 6:30 to 7:00. He goes to school at seven. He has four classes in the morning. He has lunch at school, but on Sundays he has lunch at home with his family. He has three classes in the afternoon. He leaves school at 5:00. He often has dinner at home. In the evening he sometimes watches TV. Sometimes he does his homework. He goes to bed at ten o'clock every night. How long does it take Li Peng to read English after breakfast?
|
[
"6:30",
"7:00",
"an hour",
"thirty minutes"
] | 3D
|
elementary_mathematics
|
mmlu_labeled
|
What do these two changes have in common?
silver jewelry tarnishing
boiling sugar to make caramel
|
[
"Both are only physical changes.",
"Both are caused by heating.",
"Both are caused by cooling.",
"Both are chemical changes."
] | 3D
|
natural science
|
scienceqa
|
As dangerous as sharks may have seed to people after watching Jaws, which was released on June 20,1975, the recent disastrous decrease in their numbers show that people have proven far more dangerous to sharks. This disastrous decline is due in large part to commercial fishing of sharks. "The market for shark fins in East Asia opened up thanks to changes in their economy, increasing their ability to spend money on things such as shark fin soup," Burgess said. However, the biggest worry for sharks and their relatives, the skates and rays, which are suffering a similar fate, "is how they are killed incidentally when fishermen try and take other fish--the problem of bycatch ," Burgess explained. "They may be thrown back afterward, but they're still dead." The key of the problems behind bringing sharks back is that "they're not the same as other fish," Burgess said, "Sharks are slow growing and slow to reach maturity. Sharks are live bearers, which means females keep their young in their body just like us, but instead of nine months, it takes 12 to 18 months or more in sharks. Also, sharks generally can't give birth again until a year after they've given birth--sometimes they're on a three-year cycle. So once you get a shark population knocked down, this 'life in the slow lane' means that recovery is measured in decades rather than years."\ Burgess said, "I'm on the recovery team for it, but the recovery plan for that is over the course of 100 years. So I won't see them recover, nor will you, nor will your children. That's what it means when these animals go down--they're down a long time." Any measures aimed at saving sharks must not only consider byeatch, "which is the real killer right now," but also encourage interactional cooperation, Burgess said. "Sharks are very migratory, and many species cross borders," he said. "We can protect them only by getting many govemment to come aboard. That's the hardest part about this." The test is most probably a _ .
|
[
"newspaper ad",
"book review",
"science news report",
"science fiction story"
] | 2C
|
college_biology
|
mmlu_labeled
|
Speaking Club HK $1,950 (18hours) This course aims to help develop vocabulary. Each student will also have a reader, which provides a topic for discussion. Students are level tested and then placed in different classes according to their level of English and their age. It is only for students whose level test shows them to be at intermediate level of above. The fee includes a course folder and _ . Bridging Course Available in July and August HK $1,950 (18hours) Our Bridging Course is aimed at students from Chinese primary schools who are about to enter an English secondary school in September. The course is a fun way to develop students' confidence in using English through topic-based speaking, listening, reading and writing activities. Students also widen their vocabulary by participating in a variety of language games. The fee includes a course folder and a field trip to a local museum. Preparation for prefix = st1 /UKStudy HK $1,950 (18hours) This course is for students who are leaving Hong Kong to study at boarding senior school in the UK. It focuses on functional English language to increase students' confidence in their ability to use appropriate language in the appropriate situations by communicating with natives. We also provide students with information on British culture and traditions and aim to increase students' interest in the country in which they are about to live. The fee includes a course folder and a reader called British Life. Wang Lin, who will go to Englandto attend junior school, will be interested in _ .
|
[
"Speaking Club.",
"any course",
"Preparation for UKStudy",
"Bridging Course"
] | 3D
|
high_school_macroeconomics
|
mmlu_labeled
|
When you feel sad, tears will come down from your eyes. When you are happy, especially when you laugh hard, tears will also come down from your eyes. But tears have a more important job than showing your feelings. Tears keep your eyes clean and healthy. They wash away dirt and germs just like bath. Your eyes also need tears to keep them wet. And eyes must be wet so that they can move smoothly. Your eyes are busy looking here and there all day long. They move quickly from one thing to another. If you didn't have tears, your eyes couldn't move, and soon you would be blind. Maybe you don't like tears, but your eyes can't do without them. If your eyes were not wet, you could not _ .
|
[
"look at things clearly",
"laugh and cry",
"keep clean",
"show your feelings"
] | 0A
|
anatomy
|
mmlu_labeled
|
Have you ever wondered why birds sing? Maybe you thought that they were just happy.After all,you probably sing or whistle when you are happy. Some scientists believe that birds do sing some of the time just because they are happy.However,they sing most of the time for a very different reason.Their singing is actually a warning to other birds to stay out of their territory Do you know what a "territory" is? A territory is an area that an animal,usually the male,claims as its own.Only he and his family are welcome there.No other families 0f the same species are welcome.Your yard and house are your territory where only your family and friends are welcome.If a stranger should enter your territory and threaten you,you might shout.Probably this would be enough to frighten him away. If so,you have actually scared the stranger away without having to fight him.A bird does the same thing. But he expects an outsider almost any time,especially at nesting season.So he is screaming all the time,whether he can see an outsider or not This screaming is what we call a bird's song,and it is usually enough to keep an outsider away. Birds sing loudest in the spring when they are trying to attract a mate and warn others not to enter the territory of theirs. You can see that birds have a language all their own.Most of it has to do with attracting mates and setting up territories. What is a bird's "territory"?
|
[
"A place where families of other species are not accepted.",
"An area which a bird considers to be its own",
"an area for which birds fight against each other.",
"A place where a bird may shout at the top of its Voice."
] | 1B
|
college_biology
|
mmlu_labeled
|
Animals may fight, make threatening sounds, and act aggressively toward members of the same species. These behaviors usually occur as the result of
|
[
"A",
"B",
"C",
"D"
] | 0A
|
natural_science
|
ai2_arc_challenge
|
Early to bed, Early to rise, makes a man healthy, wealthy and wise. This is an old English saying. Have you heard it before? It means that we must go to bed early and get up early in the morning. If we do, we shall be healthy. We shall also be rich(wealthy) and clever(wise). Is this true? Perhaps it is. the body must have enough sleep. Children need ten hours' sleep every night. If you do not go to bed early, you cannot have enough sleep. Then you cannot think properly and you cannot do your work properly. You will not be wise and you may not become wealthy! Some people go to bed late at night and get up late in the morning. This is not good for them. We must sleep at night when it is dark. The dark helps us to sleep properly. When the daylight comes, we must get up. This is the time for exercise. Exercise means doing things with the body. Walking, running, jumping, swimming, and playing games are all exercise. If the body is not used, it becomes weak. Exercise keeps it strong. Exercise helps the blood to move ,brains in our heads also need blood. We think with our brains. If we keep our bodies healthy, and take exercise, we can think better. Our bodies also need air to breathe. Without air we die. We must have a lot of clean, fresh air to breathe if we want to be healthy. The best time to sleep is _ .
|
[
"when it is dark",
"when you are tired",
"after supper",
"after watching TV"
] | 0A
|
nutrition
|
mmlu_labeled
|
How long does it take to make a paper airplane?
|
[
"60 seconds",
"60 minutes"
] | 0A
|
natural science
|
scienceqa
|
Select the solid.
|
[
"water in a sink",
"book",
"grape juice"
] | 1B
|
natural science
|
scienceqa
|
Who is the most powerful woman in the world? According to the US media, it's Janet Yellen, or at least she's about to be. On Oct 9, 2013,US President Barack Obama nominated Yellen to serve as the next US Federal Reserve (the Fed, )chair. If confirmed by the Senate, Yellen will become the first woman to serve in the top spot. Aged 67, silver-haired and tiny, Yellen is said to be the most qualified nominee ever. She chaired President Bill Clinton's Council of Economic Advisers, taught at Harvard and Berkeley, and was president of the Federal Reserve Bank of San Francisco. She is currently the Fed's vice chair. Many think Yellen is the right choice to deal with the challenges the Fed now faces:First, to bring interest rates back to more normal levels without triggering a new recession .Second, to reduce the US unemployment rate, which remains at historically high levels. A CNN opinion piece says Yellen is unusual for an economist of her caliber ."She has kept her eyes on what's critical-the people. Her research has centered on unemployment, on the best way to modulate government policies to benefit the people." Past records also show that Yellen is exceptionally good at predicting where the economy is headed. An article in The Washington Post points out that she was one of the few voices at the Fed inDecember 2009 warning about the subprime crisis and the following recession. The reason why Yellen will be the most powerful woman in the world has to do with the unique position of the Federal Reserve, explains an article on Quartz, a US news outlet for business people in the new global economy, First of all, the Fed is independent. Unlike US Secretaries of State Madeleine Albright and Hilary Clinton, the decisions made by the organization Yellen will lead next year are not subject to approval by anyone in the government. Within the Fed, the chair alone sets the agenda. The Fed chairperson has huge influence on monetary policy and financial regulation. And don't forget how powerful the Fed itself is. It controls the money supply in the world's largest economy. The Fed's interest rate decisions don't just set the course for the US economy, its decisions set the course for the world economy, too. Because of globalization, Yellen's decisions will affect everyone around the world, says an article in The Atlantic, making her even more powerful than some great women rulers in history, including Elizabeth I of England and China's Wu Zetian. For example, the article continues: "If Yellen even just talks about slowing down the Fed's bond-buying, Europe's troubled economies are likely to see their interest rates rise, and emerging markets, some of which, like India and Indonesia, used foreign capital to fund their current account deficits ,are likely to see their currencies collapse." What is the author's purpose of writing this passage?
|
[
"To introduce the US Federal Reserve.",
"To report on the next Fed chair.",
"To introduce the current world economy.",
"To report on a few powerful women."
] | 1B
|
high_school_macroeconomics
|
mmlu_labeled
|
A poultry egg is dissected in science class. What is the clear, thick fluid inside the poultry egg that serves as protection for the embryo?
|
[
"Yolk",
"Shell",
"Yolk sac",
"Albumen"
] | 3D
|
college_biology
|
mmlu_labeled
|
Which is an example of water condensing?
|
[
"A puddle disappearing on a hot summer afternoon",
"Sweat forming on your forehead after you do a lot of exercise",
"Ice cubes melting when you put them out in the sun",
"Dew forming on plants during a cold night"
] | 3D
|
high_school_physics
|
mmlu_labeled
|
We use both words and gestures to express our feelings, but the problem is that these words and gestures can be understood in different ways. It is true that a smile means the same thing in any language. So does laughter or crying. There are also a number of striking similarities in the way different animals show the same feelings. Dogs, tigers and humans, for example, often show their teeth when they are angry. This is probably because they are born with those behavior patterns. Fear is another emotion that is shown in much the same way all over the world. In Chinese and in English literature, a phrase like "he went pale and begin to tremble" suggests that the man is either very afraid or he has just got a very big shock. However, "he opened his eyes wide" is used to suggest anger in Chinese whereas in English it means surprise. In Chinese "surprise" can be described in a phrase like 'they stretched out their tongues!' Sticking out your tongue in English is an insulting gesture or expresses strong dislike. Even in the same culture, people differ in ability to understand and express feelings. Experiments in America have shown that women are usually better than men at recognizing fear, anger, love and happiness on people's faces. Other studies show that older people usually find it easier to recognize or understand body language than younger people do. From this passage, we can conclude _ .
|
[
"words are used as frequently as gestures",
"words are often found difficult to understand",
"words and gestures are both used in expressing feelings",
"gestures are more efficiently used than words"
] | 2C
|
human_sexuality
|
mmlu_labeled
|
Architects say they will soon be able to print a whole house by simply using a 3D printer. The technology is still ly new, but it's already being used in the medical world and in industry to bring down the cost of precision parts. Now designers in the Netherlands are planning to create a complete building. If it all goes to plan, you will see the first house to be made from 3D printing before long. It's been named the Landscape House. Following its success across different industries, Dutch architect Ruijssenaars believes printing technology has come far enough to create the first full size building. He said, "With 3D printing, you can actually directly print the shape that you want without first having to make the mould. It is not only an interesting technique, because you have actually density of printing that you can later see in the product, but it's also economically (better) because you save time and energy." To create his design with traditional construction methods, builders would have to pour concrete into specially constructed moulds and these would have to be removed once the concrete had set. The house will occupy about 1.115 square meters and if it stays within the projected budget, it is predicted to cost between 5 and 6 million US dollars. The house will occupy about will employ is the creation of Enrico Dini. He said, "My personal approach in 3D printing of building construction is: using 3D printing as our start basis of making free form cages and from then move on with the traditional construction technique." This is Dini's printer. It's big, measuring 5 meters by 3 meters. But his company D-Shape is planning to produce a new giant 3D printer, which can construct the Landscape House. Ground rock, or sand is put into the printer and then hardened by a binding agent .The 3D printer will print pillars that would go up straight. The project is expected to be completed sometime in 2014. The best title for the passage would be _ .
|
[
"Architects plan to build a 3D printed house",
"3D printer is to be made in the near future",
"Architects design house with 3D technology",
"3D technology is widely used in various fields"
] | 1B
|
computer_security
|
mmlu_labeled
|
What part of the scientific method involves measuring the growth of a plant over a one-month period?
|
[
"analysis",
"observation",
"conclusion",
"hypothesis"
] | 1B
|
college_biology
|
mmlu_labeled
|
Many animal and plant species have become extinct and many more are in critical danger. Finding ways to protect the earth's wildlife and conserve the natural world they inhabit is now more important than ever. Dodo The Dodo is a classic example of how human caused damage to the earth's biology. The flightless Dodo was native to the Island of Mauritius in the Indian Ocean. It lived off fruit fallen from the island's trees and lived unthreatened until humans arrived in 1505. The easily controlled bird became a source of food for sailors and was attacked by animals introduced to the island by humans such as pigs, monkeys and rats. The population of Dodos rapidly decreased and last one was killed in 1681. Rhinos The Rhino horn is a highly priced item for Asian medicine. This has led to the animal being hunted in its natural habitat. Once widespread in Africa and Eurasia, most rhinos now live in protected natural parks and reserves . Their numbers have rapidly decreased in the last 50 years, and the animals remain under constant threat from poachers . The Giant Panda The future of the World Wildlife Fund's symbol is far from certain. As few as 1000 remain in the wild. The Chinese government has set up 33 panda reserves to protect these beautiful animals and made poaching them punishable with 20 years in prison. However, The panda's distinct black and white patched coat fetches a high price on the black market and determined poachers still pose one of the most serious threats to the animals continued existence. Whales The International Whaling Commission is fighting to ensure the survival of the whale species. Despite the fact that one-third the world's oceans have been declared whale sanctuaries , 7 out of 13 whale species remain endangered. Hunted for their rich supply of oil, their numbers have decreased to just 300. Collisions with ships, poisonous pollution and being caught in fishing nets are other major causes of whale deaths. Tigers The last 100 years has seen a 95% reduction in the numbers of remaining tigers to between 5000 and 7000 and the Bali, Javan, and Caspian tigers are already extinct. The South China tiger is precariously close to disappearing, with only 20 to 30 still alive. Like the Rhino horn, tigers' bones and organs are sought after for traditional Chinese medicines. These items are traded illegally along with tiger skins. Which of the following statements is NOT true?
|
[
"The number of South China tigers has reached crisis point.",
"Many animals are threatened with extinction as a result of human activity.",
"People hunt for the endangered animals for high profit.",
"The Whale is the representing mark for the World Wildlife Fund."
] | 3D
|
college_biology
|
mmlu_labeled
|
An average 30-year-old person who has eaten three meals a day since birth has eaten more than 30,000 meals to date. Even if you've only eaten half that much, you have to admit this: you've let some of that breakfast, lunch or dinner go to waste. And it turns out that we're all to blame for this shaming fact: 30% of all food produced in the world each year is wasted or lost. That's about 1.3 billion tons, according to a new report by the U.N. Food and Agriculture Organization. That's the weight of more than 8.6 million full-grown blue whales, the largest creatures on earth. That's the weight of more than 2.3 million Airbus A380s, the largest planes in existence. That's as if each person in China, the world's most populous country with more than 1.3 billion people, had one ton mass of food they could just throw into the dustbin. It's almost _ ,isn't it? Setting aside that big number, we find the people with the most money are the ones who waste the most. Per capita( ), European and North American countries waste between 95 and 115 kilograms of food. Sub-Saharan African, South Asian and Southeast Asian countries waste much less -- between 6 and 11 kilograms per person. Here's another statistic: all the food that the world's richest countries waste is about equal to all the food that sub-Saharan Africa produces. The numbers: 222 million tons and 230 million tons, respectively( ). Basically, the wasted food of the rich could feed much of the African continent. And these numbers come as we've just been reporting about rising food prices around the world in the past week. And my own personal tip: if I eat at a restaurant and can't finish it all, I ask for a doggie bag. I used to be a waiter years ago and will never forget the amounts of food I saw left on the table after the bill was paid. There's no reason to waste food. It's up to all of us to use our common sense to eat and shop just a bit more wisely. It can be learned that the food the rich waste can support _ .
|
[
"half the people in Europe",
"most people of America",
"most people of Asia",
"most people of Africa"
] | 3D
|
nutrition
|
mmlu_labeled
|
Today, as in every other day of the year, more than 3,000 U.S. adolescents will smoke their first cigarette on their way to becoming regular smokers as adults. During their lifetime, it can be expected that of these 3,000 about 23 will be murdered, 30 will die in traffic accidents, and nearly 750 will be killed by a smoking-related disease. The number of deaths due to cigarette smoking outweighs all other factors, whether voluntary or involuntary, as a cause of death. Since the late 1970s, when daily smoking among high school seniors reached 30 percent, smoking rates among youth have declined. While the decline is impressive, several important issues must be raised. First, in the past several years, smoking rates among youth have declined very little. Second, in the late 1970s, smoking among male high school seniors beat that among female by nearly 10 percent . The statistic is reversing . Third, several recent studies have indicate high school _ have excessively high smoking rates, as much as 75 percent . Finally, though significant declines in adolescent smoking have occurred in the past decade, no definite reasons for the decline exist. Within this context, the National Cancer Institute (NCI) began its current effort to determine the most effective measures to reduce smoking level among youth. What is implied by the author is that _ .
|
[
"smoking rates among youth have declined very little",
"there are now more female than male smokers among high school seniors",
"high smoking rates are due to the increase in wealth",
"smoking at high school are from low socio-economic backgrounds"
] | 1B
|
college_medicine
|
mmlu_labeled
|
Which animal might catch it's sustenance faster?
|
[
"Snail",
"Frigate Bird",
"turtle",
"Sloth"
] | 1B
|
nutrition
|
mmlu_labeled
|
Three Chinese astronauts on June 24 successfully completed a manual docking between the Shenzhou-9 spacecraft and the orbiting Tiangong-1 lab module, _ in China's history of space exploration. It means China has completely grasped space rendezvous and docking technologies and the country is fully capable of transporting humans and cargo to an orbiter in space, which is essential for building a space station in 2020. Astronaut Liu Wang, assisted by his teammates Jing Haipeng and Liu Yang, controlled the Shenzhou-9 spacecraft to dock with the Tiangong-1 space lab module at 12:48 p.m., which were reconnected about seven minutes later. About one and a half hours before the docking, Shenzhou-9 parted from Tiangong-1 to a berth point 400 meters away from the module. To leave room for adjustments, engineers set up four berth points for the spaceship on the same orbit 5 km, 400 meters, 140 meters and 30 meters away from the orbiting lab. "The manual docking was beautifully conducted. The manual docking was completed in only 7 minutes, 3 minutes faster than the automatic docking." said Liu Weibo, who is responsible for China's astronaut system. Liu explained to Xinhua the three factors behind today's manual docking success. Firstly, Liu Wang has grasped the sophisticated manual docking technologies very well and his psychological status has been sound. Secondly, the three astronauts were in close cooperation. Thirdly, the domestically-made docking system was reliable, he said. The astronauts, 343 km away from Earth, were also greeted by Chinese oceanauts from the Mariana Trench, 7,020 meters beneath the Pacific Ocean, where they just broke the country's dive record in a manned submersible on Sunday morning. "We hope the manual docking is a great success and wish for brilliant achievements in China's manned space and manned deep-sea dive causes," read the message sent by the three oceanauts aboard the manned submersible Jiaolong. Wu Ping, spokeswoman for China's manned space program, said Sunday the manual space docking was "a complete success." She told a press conference in Beijing that the three Chinese astronauts had already re-entered the space lab module to continue their scientific experiments. The manual docking is a significant step for China's manned space program that celebrated its 20th anniversary this year, as China has fully grasped space travel, space walk and space rendezvous and docking technologies that are essential to building a space station. China is the third country, after the United States and Russia, to acquire technologies and skills necessary for space rendezvous and docking and be able to supply manpower and material to an orbiting module via different docking methods. The successful manual docking means a lot to China except _ .
|
[
"It is essential for building a space station in the future.",
"Chinese people can wish for more brilliant achievements in China's manned fields.",
"China can compete with the US and Russia to be the best in the world.",
"China can use another way to supply manpower and material to an orbiting module."
] | 2C
|
astronomy
|
mmlu_labeled
|
Black Friday is the Friday following Thanksgiving Day in the United States. It has been regarded as the beginning of the holiday shopping season. Although it's not an official holiday, millions of employers give their employees the day off, and many people use that day to get a jump-start on their holiday shopping. A similar day in Canada and Great Britain is called "Boxing Day". Black Friday has become somewhat of a marketing sensation in recent years. Since 2005, it has been the busiest shopping day of the year. To _ shoppers, retailers routinely open their doors as early as 4 a.m. and offer special sales and promotions to the shoppers that arrive early. Some of the special deals offered by stores are only available in limited quantities. That is why some shoppers intent on getting the best deals often camp out in front of stores overnight so that they'll be the first in line when the doors open. But why Black Friday? Historians believe the name started in Philadelphia in the mid-1960s. Bus drivers and police used "Black Friday" to describe the heavy traffic that would block city streets the day after Thanksgiving as shoppers headed to the stores. Businesses, however, didn't like the negative tone associated with the "Black Friday" name. In the early 1980s, a more positive explanation of the name began to circulate. According to this alternative explanation, Black Friday is the day when retailers finally begin to turn a profit for the year. In accounting terms , operating at a loss is called being "in the red" because accountants traditionally used red ink to show negative amounts. Positive amounts were usually shown in black ink. Thus, being "in the black" is a good thing because it means stores are operating at a profit. Recently, for those who are too busy to shop on Black Friday or who just don't want to fight the crowds, the Monday following Black Friday has become known as Cyber Monday for the many online deals. How do the retailers understand Black Friday?
|
[
"It is totally different from Boxing Day.",
"They usually lose some money on the day.",
"It never keeps them very busy.",
"It probably brings them more money."
] | 3D
|
high_school_microeconomics
|
mmlu_labeled
|
How will a thriving grassland ecosystem most likely be affected by a drought?
|
[
"Plant respiration will increase.",
"Animals will be forced to migrate.",
"Soil nutrients will be enriched.",
"Natural succession will cease."
] | 1B
|
natural_science
|
ai2_arc_challenge
|
The Centers for Disease Control and Prevention (CDC) recently announced trends in fruit and vegetable consumption among adults. Since 2000, the CDC has made efforts with goals of getting 75% of Americans to eat two or more servings of fruit a day and 50% of Americans to eat three or more servings of vegetables a day. Unfortunately, Americans aren't meeting these modest targets. Although a diet high in fruit and vegetables can reduce the risk of many diseases, Americans just aren't getting enough. In fact, since 2000, the amount of vegetables Americans are eating has stayed the same and the amount of fruit Americans are eating has gone down. The CDC also finds that only about a third of adults are eating their expected servings of fruit, and just over a quarter of adults are eating their expected servings of vegetables. So why aren't Americans getting their expected servings of fruit and vegetables? It turns out that Americans might be spoiled when it comes to their produce. A national survey conducted by Fruit2day reveals that nearly half of Americans leave fruit in their fridges until it rots with people in Boston among the worst and those in New York and Los Angeles among the best. Sadly, most Americans admit to leaving fruit in the fridge for more than a week. There are many reasons why Americans don't eat their fruit or vegetables, including the inconvenience of having to wash or peel it. Fruit2day offers consumers a surprising and convenient way to enjoy the goodness of fruit. "With no added sugar, natural juices and two full servings of fruit, our Fruit2day line has really captured the imaginations of health-conscious consumers who are actively looking to get more fruit in their diets," said Hanno Holm, president and chief executive officer of Hero-White Wave. "Fruit2day makes getting more fruit in one's diet easier for any daily snack routine." Americans don't eat their fruit or vegetables because _ .
|
[
"they are relatively forgetful",
"they are too busy with their work",
"they don't think it convenient to eat them",
"they prefer daily snacks with added sugar"
] | 2C
|
nutrition
|
mmlu_labeled
|
When I was in college, a man named Henry worked as a custodian in our student union building. White-haired, with a Pennsylvania Dutch accent, Henry could usually be seen in a baseball cap, a T-shirt and a pair of jeans. He was the custodian, and he was the most respected and most well-known person in the building. Everyone loved Henry, and it was because of all the implicit ways he expressed his love for everyone around him. Henry didn't have to say, "I love you." He lived his love. Henry was always excited when he met someone new, and he wanted to know everything about them. He felt it was important to do things for people he valued. And Henry seemed to value everyone he met. He brought in articles or cartoons for certain people, went out of his way to introduce people to each other, kept dozens of names and birthdays in his wallet so he could send cards, and helped students keep in touch with graduates who had written to him. He even assisted students who didn't have enough money to buy their books. Henry taught me --- and many others he supported --- how to live life to the fullest. Not by skydiving or exploring some foreign countries, but by appreciating where you are in life and valuing those around you. The funny thing is that despite all he did and taught us, Henry truly believed that he was the lucky one --- that he was the one who was gaining so much by getting to know us. But all of us who remember Henry know that we were the ones who were truly blessed. We will never forget the man who taught us that best way to say "I love you" often has little to do with the words. According to the passage, working as a custodian in a college, Henry _ .
|
[
"made international travels to live a full life",
"was a role model of how to be a caring person",
"was busy organizing former students' reunions",
"gathered plenty information about the needy students"
] | 1B
|
human_sexuality
|
mmlu_labeled
|
What's your opinion on spicy food? Some people cannot handle even the smallest amount of chili in their dinner while others can't get enough of it. Scientists have long been puzzled by why some people love chili and others _ it. Plenty of research has been done on the subject, dating as far back as the 1970s. Previous results showed that a love of chili is related to childhood experiences, and cultural influences affect our taste buds, too. But the latest study has found that a person's love of spicy food may be linked to his or her personality more than anything else, CBC News reported. "We have always assumed that liking drives intake---we eat what we like and we like what we eat. But no one has actually directly bothered to connect these personality traits with intake of chili peppers," said Professor John Hayes from Pennsylvania State University, who led the study. But before you look at the study, you should first know that "spicy" is not a taste, unlike sour, sweet, bitter and salty. It is, in fact, a burning sensation that you feel on the surface of your tongue. This got scientists thinking that maybe a love of spicy food is brought about by people's longing for thrill, something they usually get from watching action movies or riding a roller coaster. In the study, 97 participants, both male and female, were asked to fill out questionnaires about certain traits of their personality, for example. Whether they like new experiences or tend to avoid risks. They were then given cups of water with capsaicin , the plant chemical that makes chili burn, mixed into them. By comparing the answers to questionnaires and what participants said they felt about the spicy water. Researchers found that those who most tended to enjoy action movies or take risks were about six times more likely to enjoy the spicy water. Interestingly, we used to believe that the reason some people can withstand spicy food is that their tongue have become less sensitive to it. However, this latest study has found otherwise. It's not that it doesn't burn as badly, it's that you actually learn to like the burn," Hayes explained. What did Professor John Hayes and his team discover from their study?
|
[
"what we eat actually helps to develop our personalities.",
"Males are more likely to enjoy spicy food than females.",
"Those trying to avoid risks tend to be less interested in spicy food.",
"People are wrong to treat spicy as a kind of taste rather than a feeling."
] | 2C
|
nutrition
|
mmlu_labeled
|
What is the volume of a coffee pot?
|
[
"14 gallons",
"14 cups",
"14 fluid ounces"
] | 1B
|
natural science
|
scienceqa
|
Select the elementary substance.
|
[
"fluoromethane (CH3F)",
"copper (Cu)",
"hydrogen sulfide (H2S)"
] | 1B
|
natural science
|
scienceqa
|
People who are worried about bad breath often reach for a toothbrush or a gun. But in the future, personal breath monitoring may include far more than fresh breath. In face, breath is so rich in chemical compounds that fully understanding it has proved challenging. Each breath contains gases like carbon dioxide, the volatile remains of recent snacks, medicines and even compounds taken in from things like carpeting or various kinds of air pollution. But breath detectors can sort out these substances with increasing sensitivity . Scientists are building electronic sniffers that examine the exhaled air for signs of cancer, asthma , and other diseases. "There are clear signatures in the breath for liver disease, kidney disease and heart disease. Breath is a rich mixture that can reflect out state of health and disease." said Dr. Raed Dweik, director of the Cleveland Clinic, adding "Breath analysis is the future of medical testing." He and his partners are testing a desktop system called BreathLink for use in rapid identification of diseases. The system is designed to work wherever there is an Internet connection. To use BreathLink, a person breathes into a long tube, and a breath sample is collected and analyzed within the system. Then it can detail chemical concentrations of the breath in graphics. Dr. Raed Dweik said, "If you examine patients of asthma, you will find they have higher levels of nitric oxide in their exhaled air. It reflects their abnormal symptoms in the lungs." His tests have reached 85 percent accuracy so far in spotting people with some illness. But some trained dogs, he pointed out, can sniff out cancer with 99 percent accuracy--although without the ability to identify particular compounds the way some detectors can. "We are getting better and better," he said. "But whether we will ever approach the accuracy of the dog--we don't know." What's the author's attitude towards the future of breath detectors?
|
[
"Indifferent",
"Positive",
"Doubtful.",
"Critical."
] | 1B
|
college_medicine
|
mmlu_labeled
|
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