444.ZPW-2000A型无绝缘轨道电路在调整状态时,“轨出2”电压应不小于()

444.ZPW-2000A型无绝缘轨道电路在调整状态时,“轨出2”电压应不小于()

A.80mV

B.90mV

C.100mV

D.110mV

正确答案是A