单项选择题
A. Emergency power supply. B. Quick-close device. C. Emergency squad. D. derricks.
Which of the following is not the life-saving equipment...
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.
What would you do if hearing an abandon ship alarm? （）A...
单项选择题What would you do if hearing an abandon ship alarm? （）
A. Put on my life-jacket. B. Go to muster station. C. A+B D. Rig the lifeboat and report.
The fire was （）out.A.putB.takenC.madeD.had
单项选择题The fire was （）out.
A.put B.taken C.made D.had
