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标题: [求助]GWD-1-32 [打印本页]

作者: airggc 时间: 2005-1-21 16:27
标题: [求助]GWD-1-32

To develop more accurate population forecasts, demographers have to know a great deal more than now about the social and economic determinants of fertility.

have to know a great deal more than now about the social and economic

have to know a great deal more than they do now about the social and economical

would have to know a great deal more than they do now about the social and economical

would have to know a great deal more than they do now about the social and economic

would have to know a great deal more than now about the social and economical

答案是E，但我不明白C错在哪里？尽量补出谓语动词或助动词不是比E更好吗？

[此贴子已经被作者于2005-1-21 20:31:09编辑过]

作者: joe11 时间: 2005-1-21 22:23

请参阅置顶贴 GMAT语法讨论链接总录

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GWD

GWD讨论汇总

作者: airggc 时间: 2005-1-21 22:31

多谢版主指教！

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