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单选题
大翼防冰“L VALVE OPEN" 或“R VALVE OPEN" 灯保持在蓝色明亮。大翼防冰活门则没有在指令位置。
A
A wing anti-ice L VALVE OPEN or R VALVE OPEN light stays illuminated dim blue. The wing anti-ice valve is not in the ordered position.
B
A wing anti-ice L VALVE OPEN or R VALVE OPEN light stays illuminated bright blue. The wing anti-ice valve is not in the commanded position.
C
A wing anti-ice L VALVE OPEN or R VALVE OPEN light stays illuminated dim blue. The wing anti-ice valve is not in the preferred position.
答案解析
正确答案：B
相关知识点：
大翼防冰灯亮活门不在位
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