题目内容

900 句单选 -15 字以上 -648[音频][音频]

A. Oxygen pressure is dropping
B. Nearly collide with the mountain
C. To fly heading 050
Descend to FL180

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A. Flow control is exercised
B. Landing delay at the destination airport
C. Maintain FL100
D. Hold at BKM

A. Land quickly
B. make a quick heading change
C. climb immediately to avoid ice pellets
D. squawk 7700

A. expect further clearance 37
B. outbound time 2 minutes
C. 105
D. 180

A. 9000feet
B. 270 degrees
C. 46
D. 1 minute