题目内容
Nowadays meteorologists can make good forecast for 3 or 5 days .Perhaps soon they may be able to do that for a week or ____.
A.more behind B.more ahead C.less behind D.less ahead
B
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题目内容
Nowadays meteorologists can make good forecast for 3 or 5 days .Perhaps soon they may be able to do that for a week or ____.
A.more behind B.more ahead C.less behind D.less ahead
B