A.PB.OC.SD.GWhich letter means that oil-spilling has ha……

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.

单项选择题The fire was （）out.

A.put
B.taken
C.made
D.had