请教GWE-27-Q28题干最后一句

bipedalism

1.        GWD27-Q28

People who have spent a lot of time in contact with animals often develop animal-induced allergies, a significant percentage of which are quite serious.  In a survey of current employees in major zoos, about 30 percent had animal-induced allergies.  However, a zoo employee who develops a serious animal-induced allergy is very likely to switch to some other occupation.

 

Which of the following hypotheses receives the strongest support from the information given?

 

A.     The incidence of serious animal-induced allergies among current zoo employees is lower than that among the general population.

B.     Zoo employees tend to develop animal-induced allergies that are more serious than those of other people who spend equally large amounts of time with animals.

C.    Exposure to domestic pets is, on the whole, less likely to cause animal-induced allergy than is exposure to the kinds of animals that are kept in zoos.

D.    There is no occupation for which the risk of developing an animal-induced allergy is higher than 30 percent.

E.     Among members of the general population who have spent as much time with animals as zoo employees typically have, the percentage with animal-induced allergies is significantly more than 30 percent.

答案是E。题干最后一句：However, a zoo employee who develops a serious animal-induced allergy is very likely to switch to some other occupation.

是什么意思呢？怎么理解呢？我怎么觉得和选题关系不大？

请nn指教。

crazecat123

题干说现在在动物园工作的人里面30%有过敏反应。但是如果有工作人员有很严重的过敏反应，他会很快的换工作。
这说明在外面同样花这么多时间和动物在一起而又有过敏的人的比例比留在动物园里而又有过敏反应的人的比例（30%）要多， 因为在动物园里有严重过敏的人都换工作了。

bipedalism

NND,真够绕的。明白了，多谢兄弟

[此贴子已经被作者于2007-10-9 17:02:08编辑过]