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请问大家 此题 即大全12-19 的答案是什么?

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楼主
发表于 2009-6-6 11:36:00 | 只看该作者

请问大家 此题 即大全12-19 的答案是什么?

Most geologists believe oil results from chemical transformations of hydrocarbons derived from organisms buried under ancient seas. Suppose, instead, that oil actually results from bacterial action on other complex hydrocarbons that are trapped within the Earth. As is well known, the volume of these hydrocarbons exceeds that of buried organisms. Therefore, our oil reserves would be greater than most geologists believe.

Which of the following, if true,, gives the strongest support to the argument above about our oil reserves?

A. Most geologists think optimistically about the Earth's reserves of oil.

B. Most geologists have performed accurate chemical analyses on previously discovered oil reserves.

C. Ancient sea are buried with the Earth at many places where fossils are abundant.

D. The only bacteria yet found in oil reserves could have leaked down drill holes from surface contaminants.

E. Chemical transformations reduce the volume of buried hydrocarbons derived from organisms by roughly the same proportion as bacterial action   reduces the volume of the other complex hydrocarbons.

No answer is provided, but my guess is Choice E.
请大家指点。谢谢
沙发
发表于 2009-6-6 17:58:00 | 只看该作者

vote for D~~

板凳
 楼主| 发表于 2009-6-7 00:55:00 | 只看该作者
Anyone else would like to vote? I am still not quite sure about if Choice D is the right answer. LanfeifeiYY could you please explain the reason for voting D? Thanks!
地板
 楼主| 发表于 2009-6-7 01:03:00 | 只看该作者
I got it! The answer is D. Thanks  LanfeifeiYY!
5#
 楼主| 发表于 2009-6-7 05:33:00 | 只看该作者
I just found the correct answer key. The answer to this question is E. I am sorry for the confusion.

Thanks!
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