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标题: tn 24-12 -39 [打印本页]

作者: carolzxy1 时间: 2011-12-3 20:04
标题: tn 24-12 -39
T-4-Q39

Five hundred million different species of livingcreatures have appeared on Earth, nearly 99 percent of them vanishing.

A. Five hundred million different species ofliving creatures have appeared on Earth, nearly 99 percent of them vanishing.

B. Nearly 99 percent of five hundred milliondifferent species of living creatures that appeared on Earth have vanished.

C. Vanished are nearly 99percent of the fivehundred million different species of living creatures that appeared on Earth.

D. Of five hundred million different species ofliving creatures that have appeared on Earth, nearly 99 percent of them havevanished.

E. Of the five hundred million differentspecies of living creatures that have appeared on Earth, nearly 99 percent havevanished.

B& E爭議我選的是b，求到底是b還是e

作者: 香蕉皮儿 时间: 2012-1-8 10:52
但是b 里面那个appeared 怎么是过去式啊？难道现在不存在了~~应该还是have appeared 准确些哦~~

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