A.
B.
C.
D.
[单选题]A.B.1:2:4C.2:2:1D.1:1:2
[单选题]A.B.1:2:4C.2:2:1D.1:1:2
[单选题]A.R=16.8Ω,L=0.15HB.C.R=8.4Ω,L=0.15HD.R=13.53Ω,L=0.15H
[单选题]A.10kN·mB.20kN·mC.40kN·mD.80kN·m
[单选题]A.R=16.8Ω,L=0.15HB.C.R=8.4Ω,L=0.15HD.R=13.53Ω,L=0.15H
[单选题]A.B.1:2:4C.2:2:1D.1:1:2
[单选题]A.B.1:2:4C.2:2:1D.1:1:2
[单选题]A.B.1:2:4C.2:2:1D.1:1:2