水闸闸室沉陷缝的止水材料主要有(  )。A.紫铜片B.不锈钢片C.铁皮D.铝片E.橡胶

作者: rantiku 人气: - 评论: 0
问题 水闸闸室沉陷缝的止水材料主要有(  )。
选项 A.紫铜片 B.不锈钢片 C.铁皮 D.铝片 E.橡胶
答案 ABDE
解析

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