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使水资源具有再生性的原因是自然界的( )。

A、径流

B、水文循环

C、蒸发

D、降水

时间：2021-07-17 23:22 关键词：水利水电工程高起本工程水文学 2019级第5学期期末考试水文与水资源工程专升本水文统计学期末考试水文预报 2019级第三学期期末考试

答案解析

B

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