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标题: prep 175 没讨论过~~ [打印本页]

作者: efay 时间: 2009-5-16 08:03
标题: prep 175 没讨论过~~

175.
(27069-!-item-!-188;#058&002220)

Experts estimate that ten times as much petroleum exists in sources like tar sands, heavy oil, and perhaps even in shale than in conventional reservoirs.

A. sources like tar sands, heavy oil, and perhaps even in shale than

B. sources like tar sands, heavy oil, and perhaps even in shale than are

C. such sources as tar sands, heavy oil, and perhaps even in shale as are

D. such sources as tar sands, heavy oil, and perhaps even shale as

E. such sources as tar sands, heavy oil, and perhaps even shale than

答案D, even shale as in...是省略be了么？

as 介词时候是作为， +n

as 连词，比较， +句子

谢谢拉

[此贴子已经被作者于2009-5-16 8:03:37编辑过]

作者: babee2queen 时间: 2009-5-16 12:55
同问此题

作者: AlienX 时间: 2009-5-16 14:10
search...

作者: efay 时间: 2009-5-17 11:47

up....

作者: 梦八百 时间: 2009-5-18 22:46

ten times as much petroleum exists in xxx as in xxx.

The structure of this sentence is very clear. There is no "be" needed.

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