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轻型井点一般适用渗透系数K=（）m/d。

A、小于0.005

B、0.005～0.4

C、0.2～0.7

D、0.1～50

时间：2022-02-23 17:06 关键词：建筑排水工程土木工程建筑技能考试下水道养护工考试大学试题工学

答案解析

D

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