[求助]GWD6-Q15 发现有人说答案是c有人说是d，请教牛牛的看法

richardliu6 · 发表于 2013-7-31 20:57:23

GWD6-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. A single millipede often gets passed around among several capuchins, all of whom rub their bodies with it.
B. The two chemicals that repel mosquitoes also repel several other varieties of insects.
C. The capuchins rarely rub their bodies with the millipedes except during the rainy season, when mosquito populations are at their peak.
D. Although the capuchins eat several species of insects, they do not eat the type of millipede they use to rub their bodies.
E. 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：有人说c有人说d
我选得c，文章说monkeys会往自己身上擦millipede，实验表面millipede的分泌物会驱蚊子并且蚊子带的寄生虫会debilitate capuchins，科学家就猜测monkeys 用millipe擦身子是为了抵御蚊子。 c说monkey平时很少用millipede擦身上除了蚊子很多的时候，我认为正好支持了科学家的猜测。而d说monkey不吃millipede，我认为和文章无关啊，请牛牛不吝赐教！谢谢！

richardliu6 · 发表于 2013-7-31 21:51:43

自己顶！

richardliu6 · 发表于 2013-8-1 11:22:06

自己再顶，有没有牛牛来说说啊

fred28 · 发表于 2013-8-1 15:14:22

按helr的分类此题属于相关因果，然后c属于因果关系的加强，d不涉及因果同时也不能说明结果。

Extremo · 发表于 2013-8-1 15:46:21

选C
P1：Capuchin monkeys often rub their bodies with a certain type of millipede.
P2：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，
C： monkeys rub their bodies with the millipedes because doing so helps protect them from mosquitoes.
答案要在mosquitoes和monkeys中间架桥。

A--无关项。没有提到mosquitoes和monkeys的关系。
B--无关项。
C--加强。蚊子多时：Capuchin monkeys often rub their bodies with a certain type of millipede，蚊子不多时则不会或很少。
-->蚊子是变量，是造成猴子这么做的行为-->支持结论。
D--无关。
E--无关。

richardliu6 · 发表于 2013-8-3 09:47:06

fred28 发表于 2013-8-1 15:14
按helr的分类此题属于相关因果，然后c属于因果关系的加强，d不涉及因果同时也不能说明结果。 ...

请问相关因果是什么？能不能给我详细说说，谢谢！

richardliu6 · 发表于 2013-8-3 09:49:53

Extremo 发表于 2013-8-1 15:46
选C
P1：Capuchin monkeys often rub their bodies with a certain type of millipede.
P2：Laboratory tes ...

你看四楼的

Extremo · 发表于 2013-8-3 10:19:14

richardliu6 发表于 2013-8-3 09:49
你看四楼的

看什么请问

richardliu6 · 发表于 2013-8-3 10:35:09

Extremo 发表于 2013-8-3 10:19
看什么请问

四楼说：按helr的分类此题属于相关因果，然后c属于因果关系的加强，d不涉及因果同时也不能说明结果。

richardliu6 · 发表于 2013-8-3 10:37:15

Extremo 发表于 2013-8-3 10:19
看什么请问

我看错了，抱歉，这么说就选C喽

本贴相关题目 GMATPrep-2008E2-CR-105 | TN-04-CR-15 (KJQB)

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