单项选择题
扔给他救生圈，并帮他上船。（）
A. Release a life-jacket and help him come on board. B. Releasing lifebuoy and help him come on board. C. Throw him a lifebuoy and help him come on board. D. Release a life-raft and help him come on board.
单项选择题 关闭所有防火门并使用干粉灭火器。（）
单项选择题 立即发警报。（）
单项选择题 准备弃船。（）
