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提问人:网友z*****n 发布时间:2023年1月15日 21:01
[单选题]

屋面用的挑檐脚手架,在使用时必须严格控制施工荷载,一般每平方米不得超过(),如需承受较大荷载时,应采取加强措施。

A.100kg B.120kg C.150kg D.200kg

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