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GRE阅读逻辑题训练(31)

2017-03-28 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(31)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!

　　During a single hour, an automatic camera photographed 100 vehicles that were speeding on a one-way road, and police a mile farther down the road photographed 49 vehicles that were speeding. Since every vehicle that passed the automatic camera also passed the police during the hour, the police photographed fewer than half of the vehicles that were speeding when passing them.

　　Which of the following is an assumption on which the reasoning in the argument above depends?

　　A：Fewer than half of the vehicles that were speeding when they passed the police were already speeding when they passed the automatic camera.

　　B：Drivers who are not exceeding the speed limit are less likely than drivers who are speeding to reduce their driving speed when they see a marked police car.

　　C：Most of the vehicles that sere speeding when they passed the automatic camera were still speeding when they passed the police.

　　D：More than, 100 vehicles passed the automatic camera during the hour in which the automatic camera photographed 100 speeding vehicles.

　　E：No more than 100 vehicles drove past the police during the hour in which the police photographed 49 speeding vehicles.

　　最佳解析：

　　本题推理为：“自动照相机拍了100辆的超速汽车，而警察只拍下49俩，所以警察只拍下了少于一半的超速汽车。”本题用警察拍的超速车少了来解释上面100辆和49辆的事实。而这个推理要想正确，必须基于的假设为“没有其他的原因来解释为什么警察拍下49辆超速车，而自动照相机拍下100辆。”仔细考虑可得：造成警察拍的少的原因完全可能是这些超过经过自动拍照机的车到了警察处就不超速了。而上面推理要想成立，必须否决这种可能，即：这些车仍然超速通过警察。所以(C)选项说明了这一点，(C)is correct。(A)说明不了任何问题。(B)是一个新的比较。(D)是一句废话。(E)与(D)相同，无任何意义。

　　答案：C

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　　以上就是新东方在线GER频道为你带来的GRE阅读逻辑题训练(31)，更多精彩敬请关注新东方在线GRE频道。

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