13. 「可控距螺槳」之英文名稱為下列何者？
(A)Constant Pressure Propeller
(B)Constant Pitch Propeller
(C)Controllable Pressure Propeller
(D)Controllable Pitch Propeller

答案：登入後查看
統計： A(0), B(1), C(0), D(7), E(0) #3019474