In RTF communication, the aircraft call sign 9099X is spoken as _______ .
A.niner zero niner niner X-ray
B.niner 0 niner niner X
C.nine naught nine nine X-ray
D.nine thousand and ninety-nine X
正确答案是A
In RTF communication, the aircraft call sign 9099X is spoken as _______ .
A.niner zero niner niner X-ray
B.niner 0 niner niner X
C.nine naught nine nine X-ray
D.nine thousand and ninety-nine X
正确答案是A