The policemen acted quickly because lives were
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The policemen acted quickly because lives were at stake.
A:in danger B:in difficulty C:in despair D:out of control
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答案：A
本句意思：警方迅速展开行动，因为有生命处于险境。短语in danger意思为“处于危险 之中”，与at stake（在危急关头，在危险中）意思接近。短语in difficulty为错误搭配；in despair意 思为“在绝望之中”;out of control意思为“失控”。