38.What are the factors to be considered when the performance of the propulsive engine is assessed?1engine speed 2load of ship 3maker of engine 4surface condition of ship-hull.
(A)123
(B)234
(C)341
(D)412

答案：登入後查看
統計： A(49), B(16), C(22), D(84), E(0) #577840