飞行中，蓝电动泵失效，蓝系统：
In flight,if the blue electric pump failed,the blue system:
发布于 2021-01-29 13:21:31
【单选题】 A 失效 fails B 可由冲压空气涡轮（RAT）恢复 could be recovered by the ram air turbine (RAT) C 可由动力传输组件（PTU）恢复 could be recovered by the power transfer unit (PTU)
