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A new genetically engineered papaya was produced not by seed companies who have been motivated by profit, which was the case with most genetically modified crops previously approved for commercial use, but university and United States Department of Agriculture researchers who allowed growers to use it free of charge.

正确答案: C

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prep1-59请问as be the case with的用法

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发表于 2011-8-31 15:39:12 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
59.    (27573-!-item-!-188;#058&003208)

A new genetically engineered papaya was produced not by seed companies who have been motivated by profit, which was the case with most genetically modified crops previously approved for commercial use, but university and United States Department of Agriculture researchers who allowed growers to use it free of charge.

(A) produced not by seed companies who have been motivated by profit, which was the case with most genetically modified crops previously approved for commercial use, but
(B) produced not by profit-motivated seed companies, the case with most genetically modified crops previously approved for commercial use, but
(C) produced not by profit-motivated seed companies, as was the case with most genetically modified crops previously approved for commercial use, but by
(D) not produced by profit-motivated seed companies, which was the case with most genetically modified crops previously approved for commercial use, but was produced by
(E) not produced by seed companies who have been motivated by profit, the case with most genetically modified crops previously approved for commercial use, but by




答案是C,我想请问大家C中后面的as was the case with...是什么用法。之前在网上看到有朋友说是独立主格,我确实不太明白。
谢谢。
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 楼主| 发表于 2011-9-2 21:59:56 | 只看该作者
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