Article: Nuclear power's  danger to health, safety, and even life itself can be described in one word; radiation . Nuclear radiation has a certain mystery about it, partly because it cannot be detected   by human senses. It can't be seen or heard, or touched or tasted, even though it may be all around us. There are other things like that. For example, radio waves are all around us but we can't detect them, sense them, without a radio receiver. Similarly, we can't sense radioactivity without a radiation detector. But unlike common radio waves, nuclear radiation is not harmless to human beings and other living things. At very high levels, radiation can kill an animal or human being completely by killing masses of cells   in important organs  . But even the lowest levels can do serious damage. There is no level of radiation that is completely safe. If the radiation does not hit anything important, the damage may not be significant. This is the case when only a few cells are hit, and if they are killed completely. Your body will replace the dead cells with healthy ones. But if the few cells are only damaged, and if they reproduce themselves, you may be in trouble. They reproduce themselves in an unusual way. They can grow into cancer. Sometimes this does not show up for many years. This is another reason for some of the mystery about nuclear radiation. Serious damage can be done without the knowledge of the person at the time that damage has occurred. A person can be irradiated  and feel fine, then die of cancer five, ten, or twenty years later as a result. Or a child can be born weak or easy to get serious illness as a result of radiation absorbed by its grandparents. Radiation can hurt us. We must know the truth. Question: According to the passage, the danger of nuclear power lies in   _  . Yes or no, is the answer "nuclear radiation"?
Yes

Article: The common cold is the world's most widespread illness, which is probably why there are more myths(,) about it than any of the other illnesses.        The most widespread mistake of all is that colds are caused by cold.They are not.They are caused by viruses passing on from person to person.You catch a cold by coming into contact, directly or indirectly, with someone who already has one.If cold causes colds, it would be reasonable to expect the Eskimos to suffer from them forever.But they do not.And in isolated Arctic regions explorers have reported being free from colds until coming into contact again with infected  people from the outside world by way of packages and mail dropped from airplanes.        At the Common Cold Research Unit in England, volunteers took part in Experiments in which they gave themselves to the discomforts of being cold and wet for long stretches of time.After taking hot baths, they put on bathing suits, allowed themselves to be doused  with cold water, and then stood about dripping  wet in drafty  rooms.Some wore wet socks all day while others exercised in the rain until close to exhaustion.Not one of the volunteers came down with a cold unless a cold virus was actually dropped in his nose.        If cold and wet have nothing to do with catching colds, why are they more frequent in the winter? In spite of the most painstaking research, no one has yet found the answer.One explanation offered by scientists is that people tend to stay together indoors more in cold weather than at other times, and this makes it easier for cold viruses to be passed on.        No one has yet found a cure for the cold.There are drugs and pain suppressors such as aspirin, but all they do is to relieve the symptoms. Question: What does the passage mainly discuss? Yes or no, is the answer "The reason and the way people catch colds."?
Yes

Article: There was once an ant that was very thirsty. It ran here and there looking for some water but could not find any. Then suddenly, when the ant was almost ready to die of thirst, a large drop of water fell on it. The ant drank the water, which saved its life. The water was actually a tear from a young girl who was crying. Because of her sadness, the tear had magical qualities and suddenly the ant could speak the language of human beings. The ant looked up and saw the young girl sitting in front of a huge pile of seeds. "Why are you sad?" asked the ant. "I'm the prisoner of a giant." the girl told the ant. " He won't let me go until I've made three separate heaps of grain, barley and rye out of this huge pile of seeds in which they are all mixed together." "That will take you a month!" the ant said, looking at the huge pile of seeds. "I know," the girl cried, "and if I haven't finished by tomorrow, the giant will eat me for his supper!" "Don't cry," the ant said, "my friends and I will help you." Soon thousands of ants were at work, separating the three kinds of seeds. The next morning, when the giant saw that the work had been done, he let the girl go. Thus it was one of her tears that saved her life. Question: What would the giant do if the girl failed to do the work? Yes or no, is the answer "He would eat her."?
No

Article: An explosion on Thursday killed one and injured 21 in a busy street in Tongren, Southwest China's Guizhou Province. The bomb was hidden in a rubbish bin in the city's commercial hub ,where lots of shops and restaurants are concentrated. The ear-splitting blast was heard around 12:50 p.m.,said a local newspaper, citing witnesses. The power of the blast shattered nearby shop windows and ripped the stainless steel rubbish can to pieces. One passer-by,identified only as Zhang,said she was shocked by the noise and saw a lot of pedestrians lying on the ground when she got to the scene. Thirteen of the injured were taken to a local hospital after the explosion. A doctor there said five were in serious condition but already out of danger after emergency treatment. The others were just slightly hurt. "The cause of the explosion is still unknown", said an officer with the Tongren police, but refused to speculate as to the cause. Question: It can be inferred from the passage that   _  . Yes or no, is the answer "All the injured were not taken to a hospital"?
