voleroiseau

7-Q5
现在过敏的学生多了，推出>> 现在学生总数变多 or 现在的学生比

以前更敏感

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.
送医院的标准不同。比如10年前长10个痘痘才送医院，现在长5个痘

痘就送医院。标准不同了，现在送医院的人就多了。
取非检验，如果标准不同，那么推论就不止上面2个原因，还要加送

医院标准不一样这个原因，削弱结论，所以必为假设

D.The chemicals are not commonly used as cleaners or

pesticides in houses and apartment buildings in Renston.
这根本就没有以前和现在的比较，完全是无关项。
取非对题目也没有任何影响

voleroiseau

when air temperatures fall much below that temperature,

the moths typically have to remain inactive on vegetation

for extended periods, leaving them highly vulnerable to

predators.
当气温<体温时，moth停止活动(保持体力) > 导致moth容易被吃
这句话得出的结论是：moth不会再气温比自己体温低的地方生存

大moth有高体温，那么相应的它也要求更高的气温(低气温会使它死

亡)，即是B的意思
B.large moths are proportionally much more common in warm

climates than in cool climates