"—Ground, PIA670, good morning, request start up. —PIA670, expect departure at 50, I’ll call you back for _______ ."
A.takeoff
B.departure
C.start up
D.taxi
正确答案是C
"—Ground, PIA670, good morning, request start up. —PIA670, expect departure at 50, I’ll call you back for _______ ."
A.takeoff
B.departure
C.start up
D.taxi
正确答案是C