单项选择题
A. The captain is the head of a ship. B. The master is the head of a ship. C. The deck department is under the command of the chief officer. D. The pilot is the head of a ship.
A. Port a little. B. Port more. C. Port five. D. Starboard ten.
A. Port ten. B. Port slow. C. Port five. D. Starboard ten.