脚手架必须配合施工进度搭设,一次搭设高度不应超过相邻连墙件以上( )步。A、一 B、二 C、三 D、四

作者: rantiku 人气: - 评论: 0
问题 脚手架必须配合施工进度搭设,一次搭设高度不应超过相邻连墙件以上( )步。
选项 A、一 B、二 C、三 D、四
答案 B
解析

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