JAL176, if no transmissions are received for 1.5 minutes in the
2023-12-01英文执照选择题
JAL176, if no transmissions are received for 1.5 minutes in the _______ or 15 seconds on final, attempt contact on 121. 6 and proceed VFR.
A.procedure
B.process
C.pattern
D.progress
正确答案是C
