GWD7 05 没有问过的

ConnieC

Exposure to certain chemicals commonly used in elementary schools as cleaners or pesticides causes allergic reactions in some children.Elementary school nurses in Renston report that the proportion of schoolchildren sent to them for treatment of allergic reactions to those chemicals has increased significantly over the past ten years.Therefore, either Renston’s schoolchildren have been exposed to greater quantities of the chemicals, or they are more sensitive to them than schoolchildren were ten years ago.

Which of the following is an assumption on which the argument depends?



A.The number of school nurses employed by Renston’s elementary schools has not decreased over the past ten years.（护士的数目，与此题没有关系，并没有提到什么average 的事情，所以无关）

B.Children who are allergic to the chemicals are no more likely than other children to have allergies to other substances.（other substances与此题无关）

C.Children who have allergic reactions to the chemicals are not more likely to be sent to a school nurse now than they were ten years ago.（排除他因，说明前后的某种条件是相等的，不作为原因的考虑对象）

D.The chemicals are not commonly used as cleaners or pesticides in houses and apartment buildings in Renston.
E.Children attending elementary school do not make up a larger proportion of Renston’s population now than they did ten years ago.
答案是C， 但是我选的D。 我想问问  D和 E为什么不对。
蓝色的字是我做题后分级的记录，大家可以帮我看看哈，看另外有什么不对的

Hendy

E说的是比例，没说看病人的数量，是相对值不是绝对值

hjxsparrow

DE都是无关选项

你觉得对的理由是什么

ConnieC

顶