单选题 ______is mainly used for ship's security.

单选题 ______fitted in an oil tanker shall comply with the relevant requirements of the "Oil Pollution Prevention Regulations".

单选题 Received your MA YDAY. I will proceed ______ your assistance.

单选题 As soon as the ship is berthed, you should lower the gangway, stretch a net ______it, and adjust it to the rise and fall of the tides so that personnel may embark or disembark in safety.

单选题 The Second Officer shall be responsible to the ______for the maintaining of the navigation bridge and its surrounding areas in a neat and orderly manner.

单选题 A vessel with a disabled rudder could be classified as ______.

单选题 You are keeping the required garbage disposal records. The amount of garbage disposed of must be stated in ______.

单选题 Each firefighting drill on board shall include the following EXCEPT ______.