A.不小于冻结深度+0.25米
B.不小于冻结深度+0.5米
C.不小于冻结深度+0.75米
D.不小于冻结深度+1米
A.不小于冻结深度+0.25米
B.不小于冻结深度+0.5米
C.不小于冻结深度+0.75米
D.不小于冻结深度+1米
A.1.25
B.1.50
C.1.75
D.2.00
A.90%
B.93%
C.95%
D.97%
A.100kPa
B.120kPa
C.150kPa
D.200kPa
A.1:1
B.1:1.5
C.1:2
D.1:3
A.300毫米
B.400毫米
C.500毫米
D.600毫米
A.90%
B.92%
C.93%
D.95%
A.2.0m
B.2.5m
C.3.5m
D.4.0m
A.0.5m~1.0m
B.1.0m~1.5m
C.1.5m~2.0m
D.2.0m~2.5m