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
单项选择题 During a fire drill on a ship，what action is required?（）
单项选择题 After abandoning ship，you should deploy the sea anchor from a liferaft to（）.
单项选择题 According to the ship regulations，the capacity of a liferaft is required to be marked（）.
