Two nuclear power stations in the past ten years．A.were set upB.have set upC.hav
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Two nuclear power stations ________ in the past ten years．
A.were set up
B.have set up
C.have been set up
D.have been setting up
试题答案
C
解析：看到时间状语in the past／last…（在过去的……时间里）时，这样句子的时态为现在完成时。