单项选择题

救生艇下水每隔三个月进行一次。（）

A. Lifeboat launching is operated at intervals of three months.
B. Lifeboat launching is operated at intervals for three months.
C. Fire drill is carried out once a month.
D. Don’t operate two or more hatch covers at the same time.

<上一题目录下一题>

热门试题

单项选择题Which letter means that oil-spilling has happened?（）

A.P
B.O
C.S
D.G

单项选择题（）is best for electrical fire.

A. Dry extinguisher
B. Power extinguisher
C.A+B
D. CO₂ extinguisher

单项选择题Which of the following is not the emergency equipment?（）

A. Emergency power supply.
B. Quick-close device.
C. Emergency squad.
D. derricks.

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? （）

A. Put on my life-jacket.
B. Go to muster station.
C. A+B
D. Rig the lifeboat and report.