设备基础浇筑时,一般应分层浇筑,并保证上下层之间不留施工缝,每层混凝土的厚度为(  )mm。A.100~200B.200~300C.300~400...

作者: rantiku 人气: - 评论: 0
问题 设备基础浇筑时,一般应分层浇筑,并保证上下层之间不留施工缝,每层混凝土的厚度为(  )mm。
选项 A.100~200 B.200~300 C.300~400 D.400~500
答案 B
解析

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