Readback is necessary in RTF because _______.
A.pilot's receiving is not always correct
B.it avoids misunderstanding
C.it makes good cooperation
D.it is in the interest of flight safety
正确答案是A
Readback is necessary in RTF because _______.
A.pilot's receiving is not always correct
B.it avoids misunderstanding
C.it makes good cooperation
D.it is in the interest of flight safety
正确答案是A