900 句单选 -15 字以上 -733[音频][音频]
A. Debris on the runways
B. Water patches on the runways
C. Snow removal in progress
D. Snow on the runways
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900 句单选 -15 字以上 -768[音频][音频]
A. filing an accident report
B. evacuating passengers
C. putting out fire
D. removing smoke
900 句单选 -15 字以上 -812[音频][音频]
A. Crew incapacitation
B. Unlawful interference
C. Unruly passenger
D. Medical issues
900 句单选 -15 字以上 -821[音频][音频]
A. Short and elderly man
B. A tall man in forties
C. a yong man with medium-height
D. a strong old man
900 句单选 -15 字以上 -843[音频][音频]
A. lithium batteries
B. liquid dangerous goods
C. overheated electrical system
D. Leakage of dangerous cargo
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