|
CR:有一题记得:说有一段时间政府试着允许让limited trucks with 3 trails (就是一拖三的大卡车)上公路,而后发现一拖三的车子的事故发生率只有一拖二或者一拖一的大卡车的1/3,所以政府觉得一拖三的安全,决定今后允许它们上高速公路.问下面哪个weaken 我选的是:试验阶段那些运输公司让个别的最小心(好像又是技术最好的...反正就往好的方面意思)的司机开一拖三的车车. 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: Partorian trucking companies have so far used triple-trailer trucks on lightly traveled sections of major highways only. 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: 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 answer: A JJ 作者做的确认: 题目内容大致差不多，但是稍微有点不一样，应该是the government 试着让limited .... 正确答案思路差不多，但是细节不一样。大家看个大意做起来会有感觉的。 | 
京公网安备11010202008513号 京ICP证101109号 京ICP备12012021号
发表于 2008-2-28 22:58:00
