--Did the medicine have a good __________? --Yes, I could sleep well last night.A. effort ...

--Did the medicine have a good __________? --Yes, I could sleep well last night.A. effort B. effect C. affect

B


试题分析: effort努力,effect影响,效果,作用,affect动词,影响。句意:这个药有效果吗?有,我昨天晚上睡的很好。故选B。
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