GWD-6-Q15的答案是不是错了呀

rickzhu

Q15:

Capuchin monkeys often rub their bodies with a certain type of millipede.  Laboratory tests show that secretions from the bodies of these millipedes are rich in two chemicals that are potent mosquito repellents, and mosquitoes carry parasites that debilitate capuchins.  Some scientists hypothesize that the monkeys rub their bodies with the millipedes because doing so helps protect them from mosquitoes.

Which of the following, if true, provides the most support for the scientists’ hypothesis?

A single millipede often gets passed around among several capuchins, all of whom rub their bodies with it.

The two chemicals that repel mosquitoes also repel several other varieties of insects.

The capuchins rarely rub their bodies with the millipedes except during the rainy season, when mosquito populations are at their peak.

Although the capuchins eat several species of insects, they do not eat the type of millipede they use to rub their bodies.

The two insect-repelling chemicals in the secretions of the millipedes are carcinogenic for humans but do not appear to be carcinogenic for capuchins。

答案选E，我个人认为C更好，而且我觉得E选项压根就不对。请大牛指点指点

SWXQ

答案是选E的？

我们上课讲的答案是选C啊？？！！！

我的疑问是，C中rarely与原文中often矛盾

crystal007

我这边答案选C阿

E是加强了monkeys使用the type of millipede的可行性，但文章显然是围绕monkeys rub their bodies with the type of millipede to repel mosquitoes.这个主题，E选项偏离题意。固然monkeys要去赶蚊子的前提是monkeys要可以用，不能用完了会致癌，但觉得知识过度推理出的假设。

ediewang

我印象是选择C啊~~