gwd-27-38

cournot

Q38People 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.

大家帮我看一下，这个题题干有问题么，我怎么解释不通？

  

hawkinsxie

记得哪里做过，但又找不到出处.

是1%+support题，原文没有论点，逻辑是这样的：

1) most patients suffering animal-induced allergy are seriously illed

1）30% zoo employees suffer animal-induced allergy

2) seriously illed zoo employees will transfer to other ocupation

如果E成立，则以上论据给出了一定的support。

因为zoo员工可以换职业，那么比其那些不是zoo员工但得病几率一样的人来说，使得还是zoo员工的得病人员少了。这就是E的观点。

A,B,C都是无关项；D出现no，而命题中，有一些人病人到了其他行业，削弱了D。

所以，选E。

cournot

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.
        

这个题我真是云里雾里，zoo员工得病后患工作，怎么就能推出一般人群得病比例比zoo员工得病比列=30%高呢,一般人群得病后也可以减少跟动物解除的机会阿，E怎么就自己在那里假设说一般人群没有减少或者杜绝了根动物接触的机会呢？

mbz

E's assumption is that the percentage of people who get sick should be the same no matter who they are, zoo workers or not. If there are 30% among the current zoo workers, and there are others who quit, then the percentage must be higher than 30%.  

Hence, 就能推出一般人群得病比例比zoo员工的30%高 

lismiles

 题干“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.”

剔除那些得病后离开zoo的人，还有30％得病的人。那么，原来的比例更高。

cournot

thanks!

hedge

thanks

liubin1987

动物员员工的转行,实际增加了一般人群中更有可能得病的机会.

选E