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【单选题】
当轨道区段内有车占用时,因为车辆的轮对电阻比轨道继电器线圈电阻小得多,所以轨道电路被轮对分路,这时流经继电器线圈的电流很小,不足以使衔铁保持吸起,继电器失磁落下,表示该区段有车占用,称为 。A.
调整状态
B.
分路状态
C.
断轨状态
D.
以上都不对
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