单项选择题
Which of the following is not the life-saving equipment? （）
A. Lifeboat. B. Life-raft . C. Life rail. D. Lifebuoy.
单项选择题 What would you do if hearing an abandon ship alarm? （）
单项选择题 The fire was （）out.
单项选择题 Where are the life-jackets for the duty personnel?（）
