gmat逻辑题求助

rhea79 · 发表于 2015-8-16 08:54:38

求助各位大神帮忙，感激不尽！这道题正确答案是E,为什么A不对呢？
If we are doomed to have local drug rehabilitation centers-and society has determined that we are-then society ought to pay for them. Which of the following, if true, would weaken the above argument?

(A)Drug rehabilitation centers are too expensive to be locally funded.
(B)Many neighborhood groups oppose rehabilitation centers.
(C)Drug rehabilitation centers are expensive to maintain.
(D)Drug addicts may be unwilling to receive treatment.
(E)A government committee has convinced many groups that local rehabilitation centers are ineffective.

alzn2765 · 发表于 2015-8-16 11:09:53

我觉得这题是一道assumption的变种题，考察的是假设的取否。

前提（因）：如果社会决定我们注定要有戒毒康复中心
结论（果）：社会应该要为这些戒毒康复中心埋单

注意此处为这些戒毒康复中心埋单是“表征”，我们不是为了“挂羊头卖狗肉”的戒毒康复中心付款（这些戒毒康复中心实际是KTV，社会还会埋单吗？），而是为了其可以起到戒毒作用的核心功能而付款。
前提成立需要一个条件：前提有效，也就是戒毒康复中心必须能达到戒毒的作用。
E中A government committee has convinced many groups that local rehabilitation centers are ineffective正是质疑了戒毒康复中心的“有效性”。

rhea79 · 发表于 2015-8-16 11:14:57

alzn2765 发表于 2015-8-16 11:09
我觉得这题是一道assumption的变种题，考察的是假设的取否。

前提（因）：如果社会决定我们注定要有戒毒康 ...

懂啦，谢谢！

gmat逻辑题求助

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