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标题: GWD 1-32 帮忙确定下答案 [打印本页]

作者: 冰凌713 时间: 2007-10-31 22:33
标题: GWD 1-32 帮忙确定下答案

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还是D哦？E里面 they do 能省略吗？各位帮忙确定一下哦

作者: Winterfish 时间: 2007-10-31 22:38
大家讨论很多，选D吧。E里面的economical是个很严重的错误：）

作者: Icanw 时间: 2007-11-1 09:55
Ｄ．　
Ｅ　中ｍｏｒｅ　ｔｈａｎ　ｎｏｗ　比较不对称。

作者: echozx 时间: 2007-11-1 10:00
肯定是D。用排除法，只有economic才是对的，与social相称--这样的话只有A和D。但A里面明显的than now 是不对的，所以是D。

作者: 冰凌713 时间: 2007-11-1 10:12
谢谢各位！！~~~

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