60的考古应该是这个，GWD和PREP的题干和问题一样，但是选项不同。 根据狗主的选择应该是prep而非gwd，望楼主采纳。 96. 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? A. 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. B. So far only the best, most experienced drivers for Partorian trucking companies have been driving triple-trailer trucks. C. Very few fatal collisions involving trucks in Partoria are collisions between two trucks. D. In Partoria, the safety record of the trucking industry as a whole has improved slightly over the past ten years. E. In Partoria, the maximum legal payload of a triple-trailer truck is less than three times the maximum legal payload of the largest of the single-trailer trucks. 选B 这个是prep中的变体，看来这个题干变体很多啊 90. 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. 选A
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发表于 2011-8-11 15:27:29
楼主
