A.4~7
B.5~8
C.6~9
D.7~10

A.型钢桩横挡板支撑
B.斜柱支撑
C.锚拉支撑
D.侧墙支撑

A.2
B.3
C.4
D.5

A.图纸自审—图纸会审—图纸会签 
B.图纸会审—图纸自审—图纸会签 
C.图纸会签—图纸会审—图纸自审 
D.图纸自审—图纸会签—图纸会审

A.300mm，1000mm
B.600mm，1000mm
C.300mm，1500mm
D.600mm，1500mm

A.宜平行屋脊铺贴
B.应垂直屋脊铺贴
C.可平行或垂直屋脊铺贴
D.宜与屋脊成45°方向铺贴

A.50mm
B.70mm
C.80mm
D.100mm

A.500mm
B.600mm
C.700mm
D.800mm

A.1/1000
B.1/2000
C.1/3000
D.1/4000

A.45min，5.5h
B.35min，6.5h
C.45min，6.5h
D.35min，5.5h

A.先撑后挖，分层开挖
B.先挖后撑，分层开挖
C.先撑后挖，分段开挖
D.先挖后撑，分段开挖