题库搜索>逻辑CR-11073
In the nation of Partoria, large trucks currently account for 6 percent of miles driven on Partoria’s roads but are involved in 12 percent of all highway fatalities. The very largest trucks—those with three trailers—had less than a third of the accident rate of single-and double-trailer trucks. Clearly, therefore, one way for Partoria to reduce highway deaths would be to require shippers to increase their use of triple-trailer trucks.
Which of the following, if true, most seriously weakens the argument?
分析A选项
分析B选项
分析C选项
分析D选项
分析E选项
我有更好的解析 
暂无雷哥网文字解析
选项分析：
A: 三截拖车目前只在lightly traveled 路段行驶。相当于破坏了Partoria's roads这个范围条件。也就是部分不能证明整体。
B：无论如何你想要减少事故率就要降速。我觉得这个也有削弱，但是他毕竟引入了别的因素，不是针对argument的削弱。
C：很少致命的相撞是两个卡车之间发生的。无关，题目既没有说致命，也没说谁和谁撞得。
D：事故率最近10年有稍微提升。题目没有涉及到时间范围内的比较。
E：三截拖车的载货量是一截拖车的三倍。无关。
一心只想杀鸡
个人理解 A：他因削弱 虽然三节拖车比其他车祸率低，但是这是因为它目前只在lightly traveled 路段行驶，也就是说在人不是很多的地方开，其实是避免了危险事故的发生。如果现在取代其他车，到人更多的高速路段开，可能同样造成严重的死亡率
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2020-03-18 16:32:14
274667n
A增加了对triple-trailer trucks使用的限制，也就是增加了对前提的限制，削弱了原文
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2019-10-20 16:53:34
suzy
类比：相似点：在B road大拖车交通事故率大于小拖车 结论：减少死亡率，增加使用大拖车 A： 大拖车只在 lightly traveled sections of major highways only行驶（讲出两者的不同点）
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2017-11-07 10:27:52
sonia
B选项好像不是限速的意思，off-limit是禁止的意思，所以b的意思是不论P国对大拖车的规章制度做出了什么改变，在一些更小的路上还是不能开大拖车，所以与题目中提到的增加三截拖车的使用能否降低高速公路死亡率无关。
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2017-08-05 11:04:25
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逻辑CR
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