Before flight, pilots must have at least _______ hours rest time
2023-12-01英文执照选择题
Before flight, pilots must have at least _______ hours rest time.
A.6
B.8
C.10
D.2
正确答案是B
Before flight, pilots must have at least _______ hours rest time.
A.6
B.8
C.10
D.2
正确答案是B