2實體肋板是連接內底板和船底板的何種構件?
(A)水密橫向
(B)水密縱向
(C)非水密橫向
(D)非水密縱向
答案:登入後查看
統計: A(4), B(5), C(12), D(2), E(0) #1049481
統計: A(4), B(5), C(12), D(2), E(0) #1049481