A.1:0.2
B.1:0.25
C.1:0.3
D.1:0.45
[单选题]坚土的放坡系数为()。A.1:0.2B.1:0.25C.1:0.3D.1:0.45
[单选题]土壤类别为四类土,放坡深度超过2m的坚土,其人工挖土的放坡系数为()。A.1∶0.2B.1∶0.25C.1∶0.3D.1∶0.45
[单选题]坚土的坚实系数为( )。A.0.5~0.6B.0.6~0.8C.0.8~1.0D.1.0~1.5
[单选题]砂砾坚土的坚实系数为()。A .1.0~1.5B .1.5~2.0C .2.0~2.5D .2.5~3.0
[单选题]松砂石的放坡系数为()。A.1∶0.15B.1∶0.3C.1∶0.25D.1∶0.2
[单选题]松砂石的放坡系数为()。A.1:0.15B.1:0.3C.1:0.25D.1:0.2
[单选题]松砂石的放坡系数为()。A.1:0.15B.1:0.3C.1:0.25D.1:0.2
[单选题]普通水、水坑的放坡系数为()。A.1:0.25B.1:0.3C.1:0.35D.1:0.2
[单选题]普通水、水坑的放坡系数为()。A.1:0.25B.1:0.3C.1:0.35D.1:0.2
[单选题]土方开挖时,一、二类土的放坡起点高度为( )。A.0.8mB.1.2mC.1.5mD.2.0m