Critical Reasoning

[Critical Reasoning] 试题详情

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?

Options:

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.

Correct:

C

Critical Reasoning

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[点此查看答疑][GWD]Critical Reasoning

这个d选项不吃这个虫子算不算排除他因?
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95浏览

[点此查看答疑][GWD]Critical Reasoning

这个d选项不吃这个虫子算不算排除他因?

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