_______ is specified information provided to air traffic services units, relative to an intended flight or portion of a flight of an aircraft.
A.Flight number
B.Flight plan
C.Departure
D.Landing information
正确答案是B
_______ is specified information provided to air traffic services units, relative to an intended flight or portion of a flight of an aircraft.
A.Flight number
B.Flight plan
C.Departure
D.Landing information
正确答案是B