A.6B.10C.12D.20
A.無(wú)功電源與有功負(fù)荷B.有功電源與無(wú)功負(fù)荷C.無(wú)功電源與無(wú)功負(fù)荷D.有功電源與有功負(fù)荷
A.35kVB.110kVC.220kVD.500kV