During an instrument departure, if there are no obstacles penetrating OIS surface, the minimum net climb gradient is _______ .
A.0.008
B.0.08
C.0.025
D.0.033
正确答案是D
During an instrument departure, if there are no obstacles penetrating OIS surface, the minimum net climb gradient is _______ .
A.0.008
B.0.08
C.0.025
D.0.033
正确答案是D