It's difficult ________about the information about earthquakes（地震）. A.know B.to know C.knowing D.for...
2022-05-20 03:31:03 222次 内蒙古呼和浩特市武川县2019-2020学年七年级下学期期中英语试卷 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
It's difficult ________about the information about earthquakes（地震）.
A.know B.to know C.knowing D.for know
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