第16题: [单项选择]我国电力网络目前的平均额定电压主要有:( )。 A. (A) 3.15kV,6.3kV,10.5kV,36.75kV,115.5kV,231kV,346.5kV,525kV B. (B) 3.15kV,6.3kV,10.5kV,37kV,115kV,230kV,347kV,525kV C. (C) 3.15kV,6.3kV,10.5kV,37kV,115kV,230kV,345kV,525kV D. (D) 3.15kV,6.3kV,10.5kV,36.75kV,115.5kV,230kV,345kV,525kV 参考答案:C