A.为了减少建设成本
B.为了美观
C.为了确保排水通畅
D.为了节约空间
A.为了减少建设成本
B.为了美观
C.为了确保排水通畅
D.为了节约空间
A.0.2%
B.0.3%
C.0.4%
D.0.5%
A.0.1%
B.0.2%
C.0.3%
D.0.4%
A.0.3%
B.0.4%
C.0.5%
D.0.6%
A.0.2%
B.0.3%
C.0.35%
D.0.4%
A.0.5
B.1.0
C.1.5
D.2.0
A.75
B.80
C.85
D.90
A.0.5
B.1.0
C.2.0
D.3.0
A.0.5
B.1.0
C.1.5
D.2.0