Why does the author mention an elderly mouse in paragraph 2?
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1 .Which of the following is NOT the conclusion made by the researchers about “drinking with meals”?
A It has a lower risk of cancer than drinking without food. B It may also be a cause of cancer. C It increases by 20 percent the possibility of cancer in all sites. D It does not eliminate cancer risk at any of the sites.
2 .Approximately how many drinks do the lowest-intake group average per day?
A 3 drinks. B 8 drinks. C 20 drinks. D 50 drinks.
3 .Which cancer risk is the lowest among all the four kinds of cancer mentioned in the passage?
A Oral cancer B Laryngeal cancer C Pharyngeal cancer D Esophageal cancer
4 .According to the last paragraph, tissue's lower exposure to alcohol___________.
A explains why inflammation triggers cancer B accounts for why food can coat digestive-tract tissues C is the reason why food can scrub alcohol off tissues D reduces the risk of laryngeal cancer
5 .According to the passage, which of the following is NOT true?
A Eating less than usual might make us live longer. B If we go on a diet when old, we may keep healthy. C Dieting might not be needed. D We have to begin dieting from childhood
7 .What can be inferred about completely normally fed mice mentioned in the passage?
A They will not experience free radical production. B They will experience more genetic rejuvenation in their lifetime. C They have more old liver genes to behave like young genes. D They are more likely to suffer from inflammation.
8 .According to the author, which of the following most interested the researchers?
A The mice that started dieting in old age. B 27 of those 46 old genes that continued to behave like young genes. C Calorie restriction that works in people. D Dieting that makes sure a drug is effective.
9 .According to the last two paragraphs, Sindler believes that____________.
A calorie restriction is very important to young people B seeing the effect of a diet, people will eat less than normal C dieting is not a good method to give us health and a long life D drugs do not have the effects of calorie restriction
10 .下列不属于行政程序法的基本原则的是（ ）。
A 公开原则 B 信赖保护原则 C 公正原则 D 参与原则
