单项选择题
Every deck officer should be able efficiently carry out:()
A.Administration; B.Navigation/Collision Avoidance; C.Conning; D.Above of all.
A.Conning B.Navigation/Collision Avoidance C.Administration D.Above of all
A.委派给驾驶员合适的任务 B.班组成员成员尽职尽责 C.消除成员中任何一人的失误 D.以上均对