钢结构工程施工质量验收规范单项选择题每日一练(2018.11.04)

A.0.005r
B.0.05r
C.0.001r
D.0.01r

A.0.1
B.0.2
C.0.3
D.0.4

A.1
B.2
C.3
D.4

A.1
B.2
C.3
D.4

A.±10°
B.±20°
C.±30°
D.±40°