39.螺槳推力經由何裝置傳至船體?
(A)曲柺軸軸承
(B)推力軸承
(C)中間軸軸承
(D)艉軸軸承

答案:登入後查看
統計: A(0), B(50), C(2), D(11), E(0) #1207435