悬挑式脚手架中支撑结构以上的脚手架应符合落地式脚手架搭设规定，并按要求设置( )。

答案查看网，轻松搜题/搜资源

【单选题】【消耗次数：1】

① 纵向水平杆

② 连墙件

③ 竖向水平杆

④ 横向水平杆

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