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If you can’t _____ a better plan, we have to carry out the present one.

A. come along with B. come up with

C. come across D. come about for

B

【解析】试题分析:考固定词组辨析。A和。。。一起来;B提出,想出,赶上;D因。。。而发生,出现。句意:如果你不能想出更好的方案,我们就不得不实施现在这个方案。故选B

考点:考查固定词组辨析。

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