本贴相关题目 OG-2015V-CR-26 (TOSF)

00:00:00

Editorial：The mayor plans to deactivate the city's fire alarm boxes, because most calls received from them are false alarms.The mayor claims that the alarm boxes are no longer necessary, since most people now have access to either public or private telephones.But the city's commercial district, where there is the greatest risk of fire, has few residents and few public telephones, so some alarm boxes are still necessary.

Which of the following, if true, most seriously weakens the editorial's argument?

AMaintaining the fire alarm boxes costs the city more than five million dollars annually.
BCommercial buildings have automatic fire alarm systems that are linked directly to the fire department.
CThe fire department gets less information from an alarm box than it does from a telephone call.
DThe city's fire department is located much closer to the residential areas than to the commercial district.
EOn average, almost 25 percent of the public telephones in the city are out of order.

正确答案: B

[讨论]OG193,一道削弱题请指教!

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happyapt2006

楼主

发表于 2007-5-6 11:28:00 | 显示全部楼层

the editorial’s argument：commercial district, where there is the greatest risk of fire, has
few residents and few public telephones, so some alarm boxes are still necessary

这是需要weaken的，如果加上E岂不起到了加强作用？

思路：

因：商业区发生火灾的风险最大，居民和公用电话较少

果：商业区需要报警信号箱

分析：有因，果是推测，要weaken所以无果，因+否果：虽然风险最大居民和公用电话较少，商业区仍然不需要报警信号箱=〉他因存在