【单选题】
点火系统在APU起动转速多少时工作：___
A. 7%；
B. 60%；
C. 7%-60%之间。
D.
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答案
B
解析
暂无解析
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飞机在地面，当滑油压力在下面那种情况下APU会自动停车：___
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