一题逻辑，第一次做错，现在我自己又有了个思维过程，询问这样想对么？

茶色的秋天

Kernland imposes a high tariff on the export of unprocessed cashew nuts in order to ensure that the nuts are sold to domestic processing plants.  If the tariff were lifted and unprocessed cashews were sold at world market prices, more farmers could profit by growing cashews.  However, since all the processing plants are in urban areas, removing the tariff would seriously hamper the government’s effort to reduce urban unemployment over the next five years.

Which of the following, if true, most seriously weakens the argument?

A.    Some of the by-products of processing cashews are used for manufacturing paints and plastics.
B.    Other countries in which cashews are processed subsidize their processing plants.
C.    More people in Kernland are engaged in farming cashews than in processing them.
D.    Buying unprocessed cashews at lower than world market prices enables cashew processors in Kernland to sell processed nuts at competitive prices.
E.    A lack of profitable crops is driving an increasing number of small farmers in Kernland off their land and into the cities.
  Answer: E
Cashew 腰果树
是说：K要high tariff,这样Unprocessed CN卖国际市场价，Farmers 就可得利，但是，不要Tariff, Gov的失业率就会升。===》削弱的意思就是说不要T，失业率不会升，相当于结论取非的支持。
E是说失业率上升的原因是因为失业的farmer去城市了，所以是他因支持，也就是不是processing plant的原因。因此，是对结论取非的支持，也就是对原结论的削弱。

茶色的秋天

我一直不知道逻辑题应该如何去思维，没学过逻辑，也没上过什么课。真是不知道该怎么做，错误率相当高，只有少数题可以一想就通。哪位TX可以告诉我逻辑题是不是会有个什么归类，然后什么题型什么思维套路啊。跪求啊
还有1周就考试了，我死的心都有了

茶色的秋天

顶啊顶

茶色的秋天

清飞扬

http://www.manhattangmat.com/forums/kernland-imposes-a-high-tariff-on-the-export-of-unprocessed-t5833.html

腹黑男

逻辑不是有lawyer逻辑方法吗？http://forum.chasedream.com/GMAT_CR/thread-438294-1-1.html?SearchText=lawyer%20%E9%80%BB%E8%BE%91%E6%96%B9%E6%B3%95

茶色的秋天

可能有关和无关我还没有参透。。。我看过这个帖子。。。哎，谢谢