A pilot should be responsible（）the safety of all the passengers on board.

单选题

A pilot should be responsible（）the safety of all the passengers on board.

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单选题

The check list should be limited to the minimum number of items determined to be essential to aid the pilot in an emergency.

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单选题

The Handbook producer should arrange the material within paragraphs in a manner he considers to be most informative to the kind of pilot expected to use the Handbook.

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单选题

When several runways are in use and there is any possibility that the pilot may be confused as to which one to use, the _______ should be stated in the takeoff clearance．

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单选题

If air-ground communication failure occurs, the pilot should _______.

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