23.舵桿縱向裂紋應採用何方式修理?
(A)修刮
(B)焊補
(C)黏接
(D)更換
答案:登入後查看
統計: A(12), B(206), C(2), D(13), E(0) #583050
統計: A(12), B(206), C(2), D(13), E(0) #583050