从未讨论过的，帮一下忙

wangming

Q5:

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.

B.       Children who are allergic to the chemicals are no more likely than other children to have allergies to other substances.

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.

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.

此题答案选C, 我知道别的选项错在哪里，但是不知道C为什么对？？感觉C跟问题问的向反了呢

overthere33

举个例子给你

我这次考试比上次考的好 结论 我的水平提高了

这里面有个assumption 就是两次考试难度相当 或者说这次考试不比上次的容易

如果说这次容易 就不能得出结论说我水平提高了

这题道理一样 现在去医院的人数比十年前多了 所以现在的过敏源多了或者他们更容易过敏了 assumption就是 当发生过敏的时候 现在的人不比十年前的人更喜欢去医院

注意一个小窍门 否定句是gmat 考assumption常见的正确答案 因为方便用取非削弱去验证

wangming

以下是引用overthere33在2009/8/20 16:37:00的发言：

举个例子给你

我这次考试比上次考的好 结论 我的水平提高了

这里面有个assumption 就是两次考试难度相当 或者说这次考试不比上次的容易

如果说这次容易 就不能得出结论说我水平提高了

这题道理一样 现在去医院的人数比十年前多了 所以现在的过敏源多了或者他们更容易过敏了 assumption就是 当发生过敏的时候 现在的人不比十年前的人更喜欢去医院

注意一个小窍门 否定句是gmat 考assumption常见的正确答案 因为方便用取非削弱去验证

比喻很形象，还以为真的比上次考好了呵呵，希望你越来越好