In emergency descent procedure, the pilot should turn left/right _______ out of the route while descending.
A.40°
B.30°
C.20°
D.15°
正确答案是B
In emergency descent procedure, the pilot should turn left/right _______ out of the route while descending.
A.40°
B.30°
C.20°
D.15°
正确答案是B