mayday cabin fire 听一遍，选择正确答案 A: Extinguishing the cabin fire B: Descending rapidly to Foxtrot C: Descending quickly to FL150 D: Landing at Foxtrot now
mayday cabin fire 听一遍，选择正确答案 A: Extinguishing the cabin fire B: Descending rapidly to Foxtrot C: Descending quickly to FL150 D: Landing at Foxtrot now
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