ZP·W1-18型无绝缘移频自动闭塞, 站内功放盒功出电压( )。[321010104]
A.(A)AC18.0V～35.0V
B.(B)DC18.0V～35.0V
C.(C)AC20.0V～40.0V
D.(D)DC20.0V～40.0V
正确答案是A
ZP·W1-18型无绝缘移频自动闭塞, 站内功放盒功出电压( )。[321010104]
A.(A)AC18.0V～35.0V
B.(B)DC18.0V～35.0V
C.(C)AC20.0V～40.0V
D.(D)DC20.0V～40.0V
正确答案是A