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GRE阅读逻辑题训练(50)

2017-03-31 16:10:00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(50)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!

  .Noting that the number of crimes committed in a certain city had decreased in 1982 by 5.2 percent in comparison with 1981, the police chief of the city said, “We see here the result of the innovation police program put into effect in the city at the beginning of 1982.”

  Which of the following, if true, most seriously weakens the conclusion drawn by the police chief?

  A:Several cities that have recently increased spending for police programs experienced no decrease in crime in 1982, as compared with 1981.

  B:The number of crimes committed in the city is estimated, by the same method each year, from the number of crimes reported.

  C:The number of crimes committed in the suburban areas surrounding the city rose by about 5 percent in 1982 over the figure for 1981 and were nearly equal in number to those in the city in 1982.

  D:The number of crimes committed in the city in 1982 was 10 percent higher than the number committed in 1972.

  E:The size of the age-group most likely to commit crimes decreases considerably in the city in 1982, as against 1981, because of a declining birth rate.

  最佳解析:

  本题推理为“犯罪的数目下降了5.2%,所以改革性的警察制度起到了效果。”这是一个明显地由一个事实得到结论的考题。事实是“犯罪下降了”,给出的结论说明警察制度是下降的原因,有没有其他可能说明它呢?(A)其他城市说明不了问题。(B)只涉及估计犯罪数目的方法,对推理起不到任何作用。(C)郊区犯罪率的增加只能支持该城市内警察制度确实起到了作用。(D)与1972年的比较毫无意义。(E)指出“其他可能”,容易犯罪的年龄组的下降是可以说明为什么犯罪率的下降的,对上面推理起到反对作用。(E)is correct。

  答案:E

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