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GRE阅读逻辑题训练(2)

2017-03-24 16:29:02来源:新东方在线整理

  为了帮助大家练习GRE阅读逻辑题,新东方在线GRE频道为大家带来GRE阅读逻辑题训练(2)一文,希望对大家GRE备考有所帮助。更多精彩尽请关注新东方在线GRE频道!

  2, In an experiment, two hundred mice of a strain that is normally free of leukemia were given equal doses of radiation. Half the mice were then allowed to eat their usual foods without restraint, while the other half were given adequate but limited amounts of the same foods. Of the first group, fifty-five developed leukemia; of the second, only three.

  The experiment above best supports which of the following conclusions?

  A:Leukemia inexplicably strikes-some individuals from strains of mice normally free of the disease.

  B:The incidence of leukemia in mice of this strain which have been exposed to the experimental doses of radiation can be kept down by limiting their intake of food.

  C:Experimental exposure to radiation has very little effect on the development of leukemia in any strain of mice.

  D:Given unlimited access to food, a mouse eventually settles on a diet that is optimum for its health.

  E:Allowing mice to eat their usual foods increases the likelihood, that the mice will develop leukemia whether or not they have been exposed to radiation.

  最佳解析:

  分析:这就是GRE的Induction典型题,问题为从上述实验中得到的哪一个结论正确,(A)inexplicably意为无法解释地,从上述实验中无法得到这个副词所表达的意味。(B)从上述实验中看出限制吃食物与不限制相比较,患血癌的数有3:55的差别,所以得到结论:血癌的发生可以由限制其食物控制。(C)显然与上述实验不符。(D)从上述实验完全看不出所谓a diet that is an optimum for its health。(E)与上文内容矛盾。综合五个选项(B)is correct。

  答案:b

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