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标题: 大全的答案是不是有不准确的地方? [打印本页]

作者: bigmouse    时间: 2004-7-22 16:42
标题: 大全的答案是不是有不准确的地方?

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.


我觉得这个答案肯定不对,应该是D,不知大家看法如何。我以前也遇到过对答案有怀疑的地方,但自己水平比较差,就没怎么置疑,我觉得有些大全答案值得大家讨论。


作者: bigmouse    时间: 2004-7-22 18:54

怎么没人理我?自己顶!


作者: arundhati    时间: 2004-7-22 21:06

这道题的答案是错了,是选D,OG上有。

其他具我所知还没有错的,有什么疑问可以帖出来大家讨论啊!


作者: lawyer_1    时间: 2004-7-22 21:10

支持


[此贴子已经被作者于2004-7-22 21:16:50编辑过]

作者: bigmouse    时间: 2004-7-22 23:53
呵呵,我会得。没办法,自己水平比较差,就怀疑也不敢说啊!




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