33. In cases where more than 25 percent of ship’s personnel has been changed, for the sake
of safety, you had better conduct the drills within _____.
(A) 24 hours
(B) seven days
(C) one month
(D) three months
答案:登入後查看
統計: A(199), B(307), C(45), D(5), E(0) #1558486
統計: A(199), B(307), C(45), D(5), E(0) #1558486