请教本月一道逻辑狗

santaalex

本月最新狗，Prep变体，（原题问weaken，选项没变，问了support）

我觉得C还算靠谱 不过还是拐了很多弯。。。请教各位高见。

大谢！

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 half this yearly plundering of our native plant populations.

Which of the following, if true, support 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 discourged from buying those varieties again.
(B) Plant sellers who sell rare wildflowers have no reasonably inexpensive alternate way to offer their wares directly to new gardens.
(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 plant's 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 innurseries.

andreasyang

我觉得选B啊
既然问的是support,  B就是加强
奸商没有其它的途径提供这种职务，所以说只能继续采野花

sugaryun

我也觉得选B。
题目问的是哪个能支持新政策达成想要实现的效果。要实现的效果就是最后一句话：half this yearly plundering of our native plant populations 将本土植物每年遭到掠夺的数量减半。（新政策就是减少做野花的广告）
B选项说销售商没有别的便宜办法来供应野花，也就是说只能通过掠夺本土的野花，因此在新政策下，减少广告，就减少野花的销售，也就减少了对野花的掠夺。如果不好理解的话，把这个选项取非：如果销售商有别的办法不用采摘野生的方法比如研究了新技术也能便宜地培植野花，那销售商就可以用培植不用采摘了，这个政策就没有必要了。这加强了题目。
C选项说对野花的需求超不过自然界可采的数量，这不是weaken了么

santaalex

同意楼上两位！

我提一点C，C说 demand < wild resource

所以 一旦杂志不宣传，demand就下降了 自然对supply的需求也就小了 就会减少掠夺

反之，如果野生的花本来就只有100个，需求有150个，杂志不宣传了，150可能减到120，但是还是大于supply，所以100个野生花还是要被掠夺的。。。