老题，又错了.GWD-1-32

bluewindow2008

  

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

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


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


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


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


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

偶选D，答案是E。

望帮我重复一下以前的讨论啊。谢谢啦！

[此贴子已经被作者于2005-1-15 19:27:42编辑过]

三脚猫

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