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（）.
A.Obeys the Pilot B.Obeys the Master C.Asks you for instructions D.Brings the rudder to a point midway between the two conflicting positions
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（）.
单项选择题 The officer in charge of the navigational watch shall not hand over the watch to the relieving officer if（）.
