"PIL：Tower G-ABCD, radio check 118.7. CTL：Station calling Tower, _______ unreadable."
A.read you
B.you are
C.your signal
D.your call sign
正确答案是B
"PIL：Tower G-ABCD, radio check 118.7. CTL：Station calling Tower, _______ unreadable."
A.read you
B.you are
C.your signal
D.your call sign
正确答案是B