A.1%
B.5%
C.2%
D.10%
A.1%
B.5%
C.2%
D.10%
A.坡度大于5%
B.坡度小于3%
C.坡度等于4%
D.坡度大于7%
A.屋面坡度小于3%
B.屋面坡度为2%
C.屋面坡度为5%
D.屋面坡度大于10%
A.大于10%
B.5%-10%
C.3%-5%
D.小于3%
A.屋面坡度大于5%
B.屋面坡度大于3%
C.屋面坡度小于3%
D.屋面坡度大于15%
A.屋面坡度为2%
B.屋面坡度为5%
C.屋面坡度为1%
D.屋面坡度为10%
A.屋面坡度为2%
B.屋面坡度为4%
C.屋面坡度为2.5%
D.屋面坡度为3.5%
A.为了美观
B.防止积水渗透
C.便于施工
D.增强屋顶的支撑力
A.小于3%
B.3%-5%
C.大于5%
D.任意坡度