关于比较！求助

hallieJJ · 发表于 2009-9-17 13:38:00

In the 1980's the rate of increase of the minority population of the United Stated was nearly twice as fast as the 1970's

A twice as fast as

B twice as fast as it was in

C twice what it was in

D two times fater than that of

E two time greater than

答案C

我错选了B，请问B错在哪儿呢？C的what 又指什么？

skyzhang · 发表于 2009-9-17 14:10:00

因为比较的rate，所以不能说某个rate比另外一个rate 快。

twice what 是一种常见表达比较用法，what 用来连接前面A was twice 和后面的it was...

hallieJJ · 发表于 2009-9-18 13:29:00

讲的太明白了，严重感谢！

xxxyyyzzz1 · 发表于 2009-9-19 12:06:00

有个疑问，IT指代1980的rate，但是1970的rate不是同一个啊。为什么能用IT指代。
这个问题我在其他题目中也有发现，对于不同年代大rate，number，之类的指标，可以用IT指代前面的，同时又比较后面的么？我觉得that of 更清晰啊

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