Hong Kong Approach, HDA 697, we have trouble extending the_______, we'll have to make a belly landing.
A.flap
B.spoiler
C.landing gear
D.aileron
正确答案是C
Hong Kong Approach, HDA 697, we have trouble extending the_______, we'll have to make a belly landing.
A.flap
B.spoiler
C.landing gear
D.aileron
正确答案是C