The landing sequence of aircraft should follow _______ principle.
A.first high speed and then low speed
B.first large aircraft and then small aircraft
C.first come first served
D.first training flights and then airline flights
正确答案是C
The landing sequence of aircraft should follow _______ principle.
A.first high speed and then low speed
B.first large aircraft and then small aircraft
C.first come first served
D.first training flights and then airline flights
正确答案是C