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單項(xiàng)選擇題

Any vessel in need of carrying out deck washing must be（）by the department concerned beforehand.

A.requested
B.allowed
C.approved
D.inquired

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單項(xiàng)選擇題

An obstruction on a helideck is any object that might present a hazard to the（）.

A.rotor blades and landing gear
B.unloading of passengers
C.loading of cargo
D.pilot's visibility

單項(xiàng)選擇題

AN ILLNESS PREFERABLY OF AN INFECTIOUS NATURE SEIZING MORE THAN TWO PERSONS ON BOARD AT THE SAME TIME defines（）.

A.Disease of Crew
B.Crew illness
C.Group illness
D.Mass disease

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