27. 船舶推進效能, 其推進效率英文書寫下列何者正確?
(A) Efficiency of engine
(B) Efficiency of hull
(C) Efficiency of propulsion
(D) Efficiency of torsion

答案：登入後查看
統計： A(39), B(13), C(499), D(5), E(0) #1497075