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题库 / Prep2007E1-CR-45
A major impediment to wide acceptance of electric vehicles even on the part of people who use their cars almost exclusively for commuting is the inability to use electric vehicles for occasional extended trips. In an attempt to make purchasing electric vehicles more attractive to commuters, one electric vehicle producer is planning to offer customers three days free rental of a conventional car for every 1,000 miles that they drive their electric vehicle.
Which of the following, if true, most threatens the plan's prospects for success?
Many electric vehicles that are used for commercial purposes are not needed for extended trips.
Because a majority of commuters drive at least 100 miles a week, the cost to the producer of making good the offer would add considerably to the already high price of electric vehicles.
The relatively long time it takes to recharge the battery of an electric vehicle can easily be fitted into the regular patterns of car use characteristic of commuters.
Although electric vehicles are essentially emission-free in actual use, generating the electricity necessary for charging an electric vehicle's battery can burden the environment.
Some family vehicles are used primarily not for commuting but for making short local trips, such as to do errands.
cr
考点：模糊词，削弱方案
该题没有提到方案目的，没有提及customer的concern，是因为贵还是因为不方便，那么削弱答案的可能性就有多种：贵或者是不需要不方便-------贵就是从另一方面来削弱
错选e，e中有 模糊词some
b说会增加价格，可以削弱。又一个类似的买饮料的题也是一样的思路。从另一方面来削弱
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