请教GWD-24-35

leeon

B is a typical wrong answer in logic questions.

B points out CB are the only substances to stimulate the appetide. If B is not true, that is, there are other substances can stimulate the appetide. The conclusion is still validate as long as CB can stimulate the appetide. So B is not correct.

E is the answer for it rule out other reason cause the result of the experiment.

miaoyin_tx

Thanks a lot. I read the question twice and then found B was definately wrong

Levy

以下是引用leeon在2004-10-21 11:33:00的发言：

B is a typical wrong answer in logic questions.

B points out CB are the only substances to stimulate the appetide. If B is not true, that is, there are other substances can stimulate the appetide. The conclusion is still validate as long as CB can stimulate the appetide. So B is not correct.

E is the answer for it rule out other reason cause the result of the experiment.

I agree with what you said about B. But if you are right with E, the answer, i think, should read like this "The chemical ......does not dependently inhibit th appetite, or The chemical .. indepently ....  please reply this, thanks.

paopao

想了半天没明白为何E对 我选的是C 排除其它原因

leeon

原文：给老鼠注射抑制C到达大脑的化学物质老鼠的食欲降低－C刺激食欲。

E说抑制C到达大脑的化学物质不能单独抑制食欲。如果单独的抑制了食欲。那么老鼠的食欲降低就和是否C物质时候刺激食欲无关了。

pinkrouge

why C is wrong?

薰衣紫草

Yeah, why c is wrong?

lawyer_1

C所说的newborn mice 的mothers鼓不鼓励它们feeed和原文的实验一点关系都没有。你将C取非，就说MOTHERS鼓励BABIES吃啦，原文结论一样成立。其实原文结论是因果型结论。E排除另外产生该结果的可能性原因。

薰衣紫草

But if mothers encourage babies to feed, we could reach the conlcusion that the encouragement, rather than cannabinoids, stimulates the feeding. This conclusion weakens the argument, doesn't it?