单项选择题
A.A member of the engineering watch
B.A member of the navigational watch
C.A member of the Stewards Department
D.All of the above
单项选择题 While you are on watch entering port，the Master gives the helmsman a rudder command which conflicts with a rudder command from the Pilot.You should make sure the helmsman（）.
单项选择题 While underway in thick fog you are on watch and hear the cry“man overboard”.Which type of maneuver should you make（）.
单项选择题 What is the BEST conductor of electricity（）.