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【判断题】
上行列车编为单数,下行列车编为双数。
A.
正确
B.
错误
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A.
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B.
OBCU/DIS
C.
balise
D.
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A.
电压与电流同相位
B.
电压超前电流 90 O
C.
电流超前电压 90 O
D.
电压超前电流 180 O
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A.
电压超前电流90°
B.
电压与电流同相位
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电压滞后电流90°
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A.
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B.
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C.
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D.
初相位
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