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【单选题】
减速板手柄在“预位”，地面扰流板将在什么时候放出（）
A.
当飞行员拉出减速板手柄时
B.
当选用了反推时
C.
当右主起落架减震筒被压缩时
D.
在机轮开始旋转后
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】After the birth of my second child，I got a job at a restaurant.Having worked with an experienced 16for a few days，I was 17to wait tables on my own.All went 18that first week.When Saturday night came，I...
A.
repeated
B.
discovered
C.
corrected
D.
described