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不要翻译!各位高人, 能人, 善人帮我解答英语题!谢谢!

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不要翻译!各位高人, 能人, 善人帮我解答英语题!谢谢!
请同学们帮我解析一下,这题不明白
5. In the 1980's the rate of increase of the minority population ofthe United States 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 faster than that of
(E) two times greater than
为什么选第三个?
我选第二个!
有些句子不是和第二个类似的写法
比如: the book attracted more attention in 1980s than it did in 1970s 这句话对不?
那这题为什么不能选第二个?
语法改错, 把twice as fast as 改掉
此题不选B的原因是:“as fast as”表示“与..一样快”;如果在前面加上twice,则没有明确的意思——twice as fast as = “两倍的与它一样快”,显然不正确.
此题用排除法最简单:
A 选项没有动词,肯定错误.
B 已经说了
C 没有错误
D two times 一般用 twice 表达
E 理由同答案D
故应该选 C.
the book attracted more attention in 1980s than it did in 1970s.
这是一个正确的句子.
AS..AS从句不一定非要前后句式相同,只要逻辑上连贯原则上都是可以的.