The ability of the airplane to fly slowly is especially important during the _______ .
A.climb and cruise phases
B.approach and landing phases
C.takeoff and landing phases
D.climb and descent phases
正确答案是B
The ability of the airplane to fly slowly is especially important during the _______ .
A.climb and cruise phases
B.approach and landing phases
C.takeoff and landing phases
D.climb and descent phases
正确答案是B