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[LSAT] Pretest 13;4/4 [复制链接]

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发表于 2010-8-28 23:31:37 |只看该作者 |倒序浏览
Kim: Some people claim that the battery-powered electric car represents a potential solution to the problem of air pollution. But they forget that it takes electricity to recharge batteries and that most of electricity is generated by burning polluting fossil fuels. Increasing the number of electric cars on the road would require building more generating facilities since current facilities are operating at maximum capacity. So even if all of the gasoline-powered cars on the roads today were replaced by electric cars, it would at best be an exchange of one source of fossil-fuel pollution for another.

Which ine of the following is an assumption on which Kim's argument depends?

C. Replacing gasoline-powered cars with battery-powered cars is justified only electric cars produce less air pollution.
E. At least some of the generating facilities built to meet the demand for electricity for battery-powered electric cars would be of a type that burns fossil fuel.(OA)
=============================================
I was hesitating between C and E. I gave up E because I thought the question stem stating that "to recharge batteries and that most of electricity is generated by burning polluting fossil fuels.", E just rephrased what was mentioned in the question stem.
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沙发
发表于 2010-8-29 02:10:49 |只看该作者
hi lily88888

After eliminating three answers, you can try to negate the remaining two and see which one will weaken the argument.

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板凳
发表于 2010-8-29 05:48:50 |只看该作者
Good point! Thank you so much!

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地板
发表于 2010-8-29 12:56:15 |只看该作者
BTW, i remember that i've ever seen a LSAT blog and it actually said that some assumption answers are just rephrasing.

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RE: Pretest 13;4/4 [修改]
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Pretest 13;4/4
https://bbs.gter.net/thread-1146328-1-1.html
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