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

正确答案: D

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楼主
发表于 2005-7-24 11:30:00 | 只看该作者

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.


>>



  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

The KEY is E, why yah? :-( My answer is B.

沙发
发表于 2005-7-24 11:37:00 | 只看该作者

would have to好像是必需的,最近练作文发现的规律。


答案是D吧。。。就是D,LZ再看看答案


economical意思是“节俭的”,economic是“经济方面的”


板凳
发表于 2005-7-24 13:33:00 | 只看该作者
地板
 楼主| 发表于 2005-7-25 15:22:00 | 只看该作者

嗯,谢谢三脚猫


看来这题需要从economic和economical着手解题,我光看主谓,忽略了形容词了,不该不该,需要记住教训!

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