你可能感興趣的試題

If a small fire initially breaks out in the engine room bilges, in which of the following sequences should the fire extinguishing agents or systems be used?（）

A.Fixed CO₂,semi-portable CO₂, then hand portable CO₂
B.Semi-portable CO₂, fixedCO₂, then hand portable CO₂
C.Hand portable, semi-portable CO₂, then as a last resort the fixed CO₂ system
D.Hand portable, fixed CO₂, then as a last resort the semi-portable CO₂

單項(xiàng)選擇題

The term "discharge", as it applies to the pollution regulations, means（）.

A.spilling
B.leaking
C.dumping
D.All of the above