问题描述：
Recently a survey _____ prices of the same goods in two different
supermarkets has caused heated debate among citizens.
A.compared B.comparing C.compares D.being compared
我不明白为什么不选A呢
supermarkets has caused heated debate among citizens.
A.compared B.comparing C.compares D.being compared
我不明白为什么不选A呢
问题解答：
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