题目内容
词汇与结构On hot days, it is _______ to see a small amount of fuel coming from the overflow drain.
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词汇与结构A fire in the cabin _______ the pilot with two immediate demands: attacking the fire, and getting the airplane safely on the ground as quickly as possible.
词汇与结构The cabin air control can be opened to _______ smoke and fumes.
词汇与结构A fire or smoke in the cabin should be controlled by identifying and _______ the faulty system.
词汇与结构If smoke increases in _______ when the cabin air vents are opened, they should be immediately closed.
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