According to the author, which of the following most interested the researchers?
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1 .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
2 .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
3 .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
4 .Why does the author mention an elderly mouse in paragraph 2?
A To describe the influence of old age on mice. B To illustrate the effect of meager food on mice. C To tell us how mice’s liver genes behave. D To inform us of the process of metabolizing drugs.
5 .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.
7 .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
8 .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
9 .下列各项中，不可以设定行政终局裁决行为的规范性文件有（ ）。
A 全国人大制定的法律 B 国务院制定的行政法规 C 全国人大常委会制定的法律 D 民族自治地方制定的自治条例 E 国务院部委制定的部门规章
10 .Which of the following statements is NOT true according to the first two paragraphs?
A Many people question the simple human activities of walking and carrying items. B Chimpanzee’s behaviors may suggest why humans walk on two legs. C Human walking upright is viewed as all adaptation to carrying precious resources. D Our ancestors’ecological conditions resembled those of modem...
