标题: [求助] 一道prep选项的理解 [打印本页] 作者: chachamao 时间: 2011-12-28 15:48 标题: [求助] 一道prep选项的理解 PREP (33847-!-item-!-188;#058&007123) 请问: 选项C如何理解? 尤其是绿色highlight部分? Amajor impediment to wide acceptanceof electric vehicles even on the part of people who use their cars almostexclusively for commuting is the inability to use electric vehicles foroccasional extended trips. In an attemptto make purchasing electric vehicles more attractive to commuters, one electricvehicle producer is planning to offer customers three days free rental of aconventional car for every 1,000 miles that they drive their electric vehicle.
Whichof the following, if true, most threatens the plan's prospects for success?
(A)Many electric vehicles that are used for commercial purposes are not needed forextended trips. (B)Because a majority of commuters drive at least 100 miles a week, the cost tothe producer of making good the offer would add considerably to the alreadyhigh price of electric vehicles. (C)The relatively long time it takes to recharge the battery of an electricvehicle can easily be fitted into the regular patterns of car use characteristic of commuters. (D)Although electric vehicles are essentially emission-free in actual use,generating the electricity necessary for charging an electric vehicle's batterycan burden the environment. (E)Some family vehicles are used primarily not for commuting but for making shortlocal trips, such as to do errands. Thanks!作者: acerjeff 时间: 2011-12-28 16:21
同问作者: panyinghan 时间: 2011-12-29 08:42
如果这个electronic car 没有impediment的话，那么应该electronic car able to extended trips occasionally. 这个PLAN 成功的话是因为顾客可以得到免费租三天普通车，可是 选项C说，电子车和普通车充电性能一样，这样的话，顾客就不管到底他们能不能有普通车优惠了，所以就不会选这个PLAN了，于是PLAN就不成功了。
好纠结的题目呀！作者: sdcar2010 时间: 2011-12-29 21:59
The argument claims that the an electric vehicle manufacturer is trying to lure customers by making an offer to provide a free car rental every 1000 miles.
Since it is a weakening question, we need to find one reason, among the answer choices, that might make the offer less attractive to prospective buyers.
If B is true, the manufacture has to increase the price for the electic car in order to cover the cost of the free car rental. Whenever the price goes up, the buyers go away. Thus, B is the answer.作者: sdcar2010 时间: 2011-12-29 22:01
C) on the other hand, says that the "long time" required for charging the e-vehicle will NOT be a problem for commuters since this requirement would not change to normal car use pattern for commuters. This is a strengthener, not weakener.