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?
(A) Many
electric vehicles that are used for commercial purposes are not needed for
extended trips.
(B) 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.
(C) 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.
(D) 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.
(E) Some
family vehicles are used primarily not for commuting but for making short local
trips, such as to do errands.
不明白为什么选B
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