一道PREP题 求解~~~大家研究完题库累了。。就来帮我解决一下~~

Queeny11

Editor:Articles in Gardening Magazine often spur sales of the plants they describe, particularly among people new to gardening.Accordingly, we will no longer publish articles or accept advertisements praising the beauty of rare wildflowers.Most such plants sold to gardeners have been difficult to propagate under cultivation, so plant sellers often collect them in the wild.Our new policy is part of our efforts to halt this yearly plundering of our native plant populations.

Which of the following, if true, casts the most doubt on the wisdom of the magazine's new policy as a way of pursuing the intended effect?

A. When people new to gardening buy plants, they often fail to take adequate care of the plants that they buy and become discouraged from buying those varieties again.

B. Plant sellers who sell rare wildflowers have no reasonably inexpensive alternative way to offer their wares directly to new gardeners.

C. The demand for rare wildflowers rarely exceeds the number of such plants that can be collected in the wild by plant sellers.

D. The propagation of rare wildflowers often depends on the plants' interaction with other organisms in their environment, such as plants that create suitable soil conditions or insects and birds that disperse seeds.

E. Revenues from sales of plants collected in the wild are supporting the discovery of new low-cost techniques enabling rare wildflowers to be readily propagated in nurseries.

mia108

是E么？

Queeny11

是E么？

-- by 会员 mia108 (2010/4/26 17:11:47)

恩。。。对。。。你怎么理解的？

切尔西

这个题我在C和E间比较犹豫，不过最后还是会选E，答案是什么
PS. 你发错区了的

Queeny11

这个题我在C和E间比较犹豫，不过最后还是会选E，答案是什么
PS. 你发错区了的

-- by 会员 切尔西 (2010/4/26 17:17:12)

呵呵 选E
恩。。发逻辑区基本没人搭理我。。。呵呵。。。所以就发这个人比较多的区了。。
你是怎么想的啊？

mia108

你能说说你那块有疑问么？

Queeny11

你能说说你那块有疑问么？

-- by 会员 mia108 (2010/4/26 17:22:03)

就是 不知道怎么选出来的。。。您能整体给我讲讲思路吗？。。。

conniequan

只能选E吧

LeeJay

这题不是4月逻辑狗狗里面的嘛 选E
今天刚换题库 都白看了
LZMM是刺激咱们来着的吧 悲催~~~

mia108

削弱题嘛，AB型的，主要思路就是有另外一个原因让B不成立，用这个思路就选出E了，因为稀有的植物在室内也可以很好繁殖了，所以就推不出结论了