112. The difficulty with the proposed high-speed train line is that a used plane can be bought for one-third the price of the train line, and the plane, which is just as fast, can fly anywhere. The train would be a fixed linear system, and we live in a world that is spreading out in all directions and in which consumers choose the free-wheel systems (cars, buses, aircraft), which do not have fixed routes.Thus a sufficient market for the train will not exist. Which of the following, if true, most severely weakens the argument presented above? (A) Cars, buses, and planes require the efforts of drivers and pilots to guide them, whereas the train will be guided mechanically. (B) Cars and buses are not nearly as fast as the high-speed train will be. (C) Planes are not a free-wheel system because they can fly only between airports, which are less convenient for consumers than the high-speed train’s stations would be. (D) The high-speed train line cannot use currently underutilized train stations in large cities. (E) For long trips, most people prefer to fly rather than to take ground-level transportation. 这道题之前也有讨论过,但没有结果,这道题的正确答案是C。其实在选择的时候根据感觉也一下子就能选出来,但知这C是不是直接说文中premise的信息有错误呢?削弱不是不应该说premise本身的错误吗? 这里怎么回事呢? |
薄荷0816 发表于 2013-9-17 14:33
个人这么理解的,题目中说的是the free-wheel systems (cars, buses, aircraft), which do not have fixed ...
shaoshiever 发表于 2013-9-17 16:02
谢谢你的回答,那啥脑子没转过来,题目说 the free-wheel systems (cars, buses, aircraft),c说的是 Pla ...
shaoshiever 发表于 2013-9-17 16:02
谢谢你的回答,那啥脑子没转过来,题目说 the free-wheel systems (cars, buses, aircraft),c说的是 Pla ...
shawnshao 发表于 2013-9-18 01:43
The argument says the train is not as good as flight.
C said flight doesn't help either.
shaoshiever 发表于 2013-9-19 01:13
谢谢你的回答,但能告诉我题目说 the free-wheel systems (cars, buses, aircraft),c说的是 Planes are ...
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