单选题 ______is mainly used for ship's security.

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

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

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

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 ______.

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 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.