大全-8-1 没有看见讨论稿，15号考试的娃求解求讨论链接

Susie爱yy

A drug that is highly effective in treating many types of infection can, at present, be obtained only from the bark of the ibora, a tree that is quite rare in the wild. It takes the bark of 5,000 trees to make one kilogram of the drug. It follows, therefore, that continued production of the drug must inevitably lead to the ibora’s extinction.
Which of the following, if true, most seriously weakens the argument above?
(A) The drug made from ibora bark is dispensed to doctors from a central authority.
(B) The drug made from ibora bark is expensive to produce.
(C) The leaves of the ibora are used in a number of medical products.
(D) The ibora can be propagated from cuttings and grown under cultivation.（E）
(E) The ibora generally grows in largely inaccessible places.

答案是e，lz错选了d。总感觉自己在OG12上做到过这个题，第一次做的时候就在ed之间纠结了很久然后选d，总记得当时og上的答案貌似也是d。今天在大全上做了就义无反顾地选了d，结果答案是e。lz爬回去翻Og快翻出火花了还没找到。只好爬cd上来求助了。。。。

15号就考了现在内心各种焦躁，望XDJM帮

Susie爱yy

答案是D 不是E， OG的题目

-- by 会员 maestri (2012/5/12 21:40:20)

麻烦具体给下Og上的位子啊，我也记得我做过，答案是d啊，现在又有点被误导地感觉e也有点对了，所以想看看Og上的解释！
谢谢啊~~

maestri

答案是D 不是E， OG的题目