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标题: 即将一战，问比较的问题，大家帮帮忙 [打印本页]

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作者: lishihui2009    时间: 2009-8-3 21:15
标题: 即将一战，问比较的问题，大家帮帮忙

prep-2-147

its number are now five times greater than when the use of DDT was sharply restricted in the early 1970's

难道大家觉得这句话没有什么不对吗（这是正确答案）number  的比较对象不对称呀，实在是疑惑

大家能给解释一下吗

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作者: lishihui2009    时间: 2009-8-3 21:41

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作者: kevinli120    时间: 2009-8-3 22:48
its number are

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作者: sunny8843    时间: 2009-8-3 23:39
恩，这里有一个省略

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