单项选择题
A.Certificate of Inspection B.Certificate of Seaworthiness C.Classification Certificate D.Certificate of Registry
Each open lifeboat carried on a vessel on an internatio...
单项选择题Each open lifeboat carried on a vessel on an international voyage must have（）.
A.hand-propelling gear B.a davit span with at least 2 lifelines C.a mast and a sail D.a motor
Each lifeboat must be lowered and maneuvered in the wat...
单项选择题Each lifeboat must be lowered and maneuvered in the water at least once every（）.
A.2 months B.3 months C.4 months D.5 months
During the required periodic abandon ship drill aboard ...
单项选择题During the required periodic abandon ship drill aboard a ship，each person not assigned duties in the muster list is（）.
A.instructed in the use of portable fire extinguishers B.shown a video demonstrating lifeboat launching C.instructed in the use of life jackets D.not required to attend the boat drill
