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标题: [求助]GWD-1-32 [打印本页]

作者: qwrersaa    时间: 2005-1-23 18:18     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?


作者: sammen    时间: 2005-1-23 20:31

我选的是D,ECONOMICAL好像是指节约啊,ECONOMIC是经济的,这个问题我还的查查字典,但是我觉得这里的补动词补的没问题啊,如果答案是正确的话,可能是认为应该补HAVE吧,希望牛牛们给解释一下。




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