题目内容
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[单选题]
WG-21A型无绝缘轨道电路自动闭塞(“N+1”系统),接收器吸起门限()。
A.205mV±8mV
B.175mV±8mV
C.160mV±6mV
D.150mV±6mV
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A.205mV±8mV
B.175mV±8mV
C.160mV±6mV
D.150mV±6mV
A.0.2A~0.3A
B.0.2A~0.35A
C.0.3A~0.5A
D.0.2A~0.5A
A.直流22.5V~28.8V
B.交流22.5V~28.8V
C.直流24.5V~34.8V
D.交流24.5V~34.8V
A.33.5μH±1μH
B.30.0μH±2μH
C.35.5μH±1μH
D.35.5μH±2μH