单项选择题
联结110kV和35kV网络的降压变压器的额定电压为()
A.121/35kV
B.110/35kV
C.110/38.5kV
D.115/37kV
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单项选择题
A.121/35kV
B.110/35kV
C.110/38.5kV
D.115/37kV
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