逻辑寂静第四题 4 卡车GWD变体的 PREP 考古

moneygmu

PREP 破解 CR1 的90题考古
问法类似，答案一致。欢迎参考。

90.    (29250-!-item-!-188;#058&004038)

In the nation of Partoria, large trucks currently have a much higher rate of traffic accidents per mile driven than other vehicles do.  However, 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 the number of traffic accidents would be to require shippers to increase their use of triple-trailer trucks.
Which of the following, if true, most seriously weakens the argument?
A. Partorian trucking companies currently use triple-trailer trucks only for long trips using major highways, which is the safest kind of trip for large trucks.
B. No matter what changes Partoria makes in the regulation of trucking, it will have to keep some smaller roads off-limits to all large trucks.
C. Increased use of triple-trailer trucks would mean that large trucks would account for a smaller proportion of all miles driven on Partoria’s roads than they currently do.
D. In Partoria, the safety record of the trucking industry as a whole has improved slightly over the past ten years.
E. The volume of truck traffic on Partoria’s highways could be reduced by encouraging shippers to use rail transport whenever possible.

和GWD一样，选A

cissy0010

就是给出他因 削弱？

dorisgackt

我遇到的辩题是两个人 a说 b说的