×
单选题
This is the minimum flight speed at which the airplane is directionally and laterally controllable.
A
This is the low limit of flight speed at which the airplane can be controlled directionally and laterally.
B
This is the upper limit of flight speed at which the aircraft is directionally and laterally controllable.
C
This is the largest flight speed at which the airplane is directionally and laterally steerable.
答案解析
正确答案：A
