题目内容
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[单选题]
架子的铺设宽度不得小于()米,脚手板须满脯,不得有空隙和探头板,脚手板搭接时不得小于()米,对头接时应设双排小横杆,间距不大于()米,在拐弯处脚手板应交叉接搭。
A.1.2,0.2,0.2
B.1.5,0.5,0.2
C.1.2,0.5,0.5
D.1.5,0.2,0.2
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A.1.2,0.2,0.2
B.1.5,0.5,0.2
C.1.2,0.5,0.5
D.1.5,0.2,0.2
A.1200
B.1000
C.900
D.800
A.脚手板搭接铺设时,搭接长度应大于200mm
B.作业层端部脚手板探头长度应取150mm
C.脚手板对接平铺时,接头处必须设两根小横杆
D.脚手板应离开墙面120~150mm、脚手板外伸长应取130~150mm
E.作业层脚手板应铺满、铺稳