A.1.2m
B.1.5m
C.1.8m
D.2m
A.1.2m
B.1.5m
C.1.8m
D.2m
A.200mm
B.250mm
C.300mm
D.350mm
A.2mm
B.2.5mm
C.3mm
D.3.5mm
A.6m
B.7m
C.8m
D.9m
A.6m
B.7m
C.8m
D.9m
A.40%
B.50%
C.70%
D.80%
A.两步
B.五步
C.四步
D.三步
A.《大体积混凝土施工标准》GB50496-2018
B.《建筑施工高处作业安全技术规范》JGJ80-2016
C.《建筑施工门式钢管脚手架安全技术规范》JGJ128-2010
D.《建筑施工扣件式钢管脚手架安全技术规范》JGJ130-2011
E.《建筑施工碗扣式钢管脚手架安全技术规范》JGJ166-2016
A.3m
B.3.5m
C.4m
D.4.5m