After landing, the pilot should switch to ground control _______ .
A.when instructed by the tower
B.before leaving the runway
C.on leaving the runway
D.on leaving the taxiway
正确答案是A
After landing, the pilot should switch to ground control _______ .
A.when instructed by the tower
B.before leaving the runway
C.on leaving the runway
D.on leaving the taxiway
正确答案是A