A.15
B.30
C.45
D.60
[单选题]A.0.8B.1.2C.1.25D.1.5
[单选题]A.15B.30C.45D.60
[单选题]A.0.8B.1.2C.1.25D.1.5
[单选题]A.15B.30C.45D.60
[单选题]A.15B.30C.45D.60
[单选题]A.15B.30C.45D.60
[单选题]A.15B.30C.45D.60
[单选题]A.15B.30C.45D.60
[单选题]A.0.8B.1.2C.1.25D.1.5
[单选题]A.15B.30C.45D.60