求教 OG12 CR 111！！！！！！！！！！！！！！！！！！！

tiankong702

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 freewheel 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.


答案选C
这道题是有多个论据来支持论点的，答案C weaken了其中一个论据，但是另一个旧飞机比高速铁路便宜很多也是很重要的一个论据啊，我觉得并不能影响决策者一面倒地改变原来的观点
我当时选择A是因为想到无人驾驶是高铁独特的特性，这个论据具有独特性，那么在无人驾驶这一块就应该存在市场。




求大家给解释一下，谢谢啦

tiankong702

自己先顶一下

tiankong702

竟然没人帮我。。。。

午夜精灵Ying

该文根本就没提到无人驾驶这回事情，A 是无关选项。

午夜精灵Ying

而且人们选择交通工具的时候，基本不会去考虑是否有没有人驾驶，而是从便利性、价格等角度来考虑的，所以是否有人驾驶根本不会影响市场。

miffyflysky

C选项说，飞机不是一个free-wheel系统，因为它们只能在机场附近飞行，而对于消费者来说，机场不如火车站方便。（这个选项也是削弱，比起A与B更紧扣原文，只比较了飞机和火车。注意，原文的free-wheel是指没有固定的轨道，而这个选项的free-wheel是指起点和终点的不固定，故选项没有反驳前提。）

Hendy

Ais based on the advantages of free-wheeled systems versus the disadvantages of fixed lines. Besides, how a car or a train runs (mechanically or manually) does not directly affect the consumer and thus, cannot affect the demand of these modes of transportation. Even if trains have the advantage of being guided mechanically, this does not address the author’s argument that there will not be a sufficient market for the train because it has a fixed line system.