A.0.02Mp B.0.04Mp C.0.06Mp D.0.08MP
A.4m B.8m C.12m D.16m
A.電流發(fā)送電流接受 B.電壓發(fā)送電壓接受 C.電流發(fā)送電壓接受 D.電壓發(fā)送電流接受