GWD-24-35

http://forum.chasedream.com/dispbbs.asp?boardID=22&ID=74705&page=1

24-35: The milk of many mammals contains cannabinoids, substances that are known to stimulate certain receptors in the brain. To investigate the function of cannabinoids, researchers injected newborn mice with a chemical that is known to block cannabinoides from reaching their receptors in the brain. The injected mice showed far less interest in feeding than normal newborn mice do. Therefore, cannabinoids probably function to stimulate the appetite.

Which of the following is an assumption ok which the argument depends?

A)            Newborn mice do not normally ingest any substance other than their mothers’ milk.

B)Cannabinoids are the only substances in mammals’ milk that stimulate the appetite.

C)The mothers of newborn mice do not normally make any effort to encourage their babies to feed.

D)            The mild of mammals would be less nutritious if it did not contain cannabinoids.

E) The chemical that blocks cannabinoids from stimulating their brain receptors does not independently inhibit the appetite.

答案是E, 我同意. B的错误是什么? 谢谢!

谢谢leeon!

好多天没看逻辑了, 今天竟然在此题上犹豫, 虽然我知道E绝对是答案, 也知道B是混淆, 可是忽然理不清了B的问题了.

I think that's the reason why u feel confused by this question, in fact , it's not a diffult question. Maybe u should practice more to look back your feeling. I remember your logic is good.

以下是引用leeon在2004-10-22 9:51:00的发言：

I think that's the reason why u feel confused by this question, in fact , it's not a diffult question. Maybe u should practice more to look back your feeling. I remember your logic is good.

谢谢, 今天做GWD24, 到这道时, 面对B忽然困惑.

最可恨的是我天天看语法竟然还错了好几道,快急死了.

E is wrong anwer