【判断题】
双管供风的车辆加挂在单管供风列车中，须改为单管供风状态
A. 对
B. 错
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答案
A
解析
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【判断题】
发电车供电的空调客车，须在列车始发前1h开启空调设备对车厢进行预冷、预热；终到后５０min卸载停机。接车供电的空调客车，在列车始发前５０min连挂机车后须立即开启空调对车厢进行预冷、预热
A. 对
B. 错
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