单项选择题
A.Hull cleaning
B.Derusting and painting
C.The maintenance of boiler
D.Docking and undocking
单项选择题 Which statement concerning the handling characteristics of a fully loaded vessel as compared with those of a light vessel is FALSE?（）
单项选择题 You intend to overtake a vessel in a narrow channel.As you approach the other vessel’s stern（）
单项选择题 ECDIS should be capable of（）all chart information necessary for safe and efficient navigation originated.