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标题: 逻辑题请求解答 [打印本页]

作者: gmt_novice    时间: 2004-1-9 08:42     标题: 逻辑题请求解答

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.

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

*此题答案是B,但是 radar detectors 一词在前提和结论中都有提过, 而最终答案却没有涉及到radar detectors 的内容?


[此贴子已经被作者于2004-1-9 8:47:47编辑过]


作者: henry_shao    时间: 2004-1-15 11:30

这题有点绕,其实再想想就明白了:
B选项的意思是指,被开罚单的那些司机比不 被开的那些司机更容易超速(这暗示着其实有司机也超速,但没被开罚单)。这样一想就明白了吧?呵呵。
作者: licheng    时间: 2004-1-27 23:09

我来补充一点我的看法

3 definition here in the para:

1. radar equiped
2. ticketed
3. exceed regularly.

logic:
first sentence : 1 -> 2
second sentence(conclusion) 1 -> 3

find an assumption that can link 2 and 3.

only B works




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