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16. A recent report determined that although only three percent of drivers on Maryland highways equipped their vehicles with radar detectors, thirty-three percent of all vehicles ticketed for exceeding the speed limit were equipped with them. Clearly, drivers who equip their vehicles with radar detectors are more likely to exceed the speed limit regularly than are drivers who do not.

The conclusion drawn above depends on which of the following assumptions?

(A) Drivers who equip their vehicles with radar detectors are less likely to be ticketed for exceeding the speed limit than are drivers who do not.

(B) Drivers who are ticketed for exceeding the speed limit are more likely to exceed the speed limit regularly than are drivers who are not ticketed.

(C) The number of vehicles that were ticketed for exceeding the speed limit was greater than the number of vehicles that were equipped with radar detectors.

(D) Many of the vehicles that were ticketed for exceeding the speed limit were ticketed more than once in the time period covered by the report.B

(E) Drivers on Maryland highways exceeded the speed limit more often than did drivers on other state highways not covered in the report.

为什么选B不选D?B和D有什么区别?

按D所说, vehicles that were ticketed for exceeding the speed limit were ticketed more than once ,那么,不也说明了drivers ticketed for exceeding the speed limit are more likely to exceed the speed limit(B的意思)。

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mm应该仔细看看文中事实和结论中范围的表达;

(本题你可以采用所谓搭桥的方法,但本人采用范围的差异进行解释)

由一次到普遍现象: 范围的扩展;

百分比的对比: 3% 与33%;

假设d是正确的,那么在report期间确实如此,但并不能保证在其他时间也是如此,该答案中的时间范围与结论中的普遍现象的范围是不同的; 取非之后并不构成对原文argument的削弱;

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是这样的:33%TICHET FOR超速的是装雷达的。==》装雷达的容易超速。我们要

做的是,在TICHET和超速之间建立联系。所以,被TICHET的就是超速的。D 说了被

TICHET的次数,和讨论没什么干系。

不知道清楚了没,希望有点启发。

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谢谢!两种解释说的都非常好,从不同的角度彻底解释。明白!

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