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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.
答案是d。题目中的意思因为过敏而来看护士的人增多，但是选项d是说现在过敏的孩子不太可能像过去十年那样因为 过敏而去看护士，这不是反了吗？
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京公网安备11010202008513号 京ICP证101109号 京ICP备12012021号
发表于 2016-10-13 23:16:29
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发表于 2016-10-14 13:22:32
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发表于 2016-10-16 11:20:12