The primary flight controls consist of the ________ailerons(副翼), elevators, and ________(方向舵).
A.flap, rudder; B.slat,rudder; C.ailerons, tail; D.ailerons,rudder;正确答案D
The primary flight controls consist of the ________ailerons(副翼), elevators, and ________(方向舵).
A.flap, rudder; B.slat,rudder; C.ailerons, tail; D.ailerons,rudder;正确答案D