_____ March 28, about 20 Chinese cities turned off lights of major building for one hour. [ ]A. At B

题目简介

_____ March 28, about 20 Chinese cities turned off lights of major building for one hour. [ ]A. At B

题目详情

_____ March 28, about 20 Chinese cities turned off lights of major building for one hour.
[     ]
A. At
B. In
C. On
D. Of
题型:单选题难度:偏易来源:山东省模拟题

答案

C

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