单项选择题
A.189kV,143.6kV B.189kV,137.9kV C.181.5kV,143.6kV D.181.5kV,137.9kV
A.1.8m B.1.5m C.1.2m D.1.0m
A.47.58V B.42.6V C.34.5V D.13.05V