建筑施工安全检查标准基坑工程单项选择题每日一练(2018.01.31)

A.1
B.0.8
C.0.6
D.0.4

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

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

A.2
B.1.5
C.1
D.0.5

A.75°
B.65°
C.45°
D.55°