單項選擇題Advise（）your fishing gear.

A.you recovery
B.you reover
C.you recovering
D.you recovered


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1.單項選擇題After abandoning ship, you should deploy the sea anchor from a life raft to（）.

A.keep the life raft from capsizing
B.navigate against the current
C.keep personnel from getting seasick
D.stay in the general location

2.單項選擇題After being launched from a vessel, totally enclosed survival craft which have been afloat over a long period require（）.

A.frequent opening of hatches to permit entry of fresh air
B.regular checks of bilge levels
C.use of ear plugs to dampen engine noise
D.frequent flushing of the water spray system with fresh water

3.單項選擇題After each reading of an oxygen indicator, the instrument should be purged with（）.

A.CO2
B.fresh air
C.the tested compartment's air
D.water

4.單項選擇題After extinguishing a fire with C02,it is availabe to（）.

A.use all CO2 available to cool the surronding area
B.stand by with water or other agents
C.thoroughly ventilate the space of CO2
D.jettison all buring materials

5.單項選擇題After putting on a self-contained breathing apparatus, you open the air supply and hear a continuous ringing of a bell.What does this mean?（）.

A.The unit is working properly
B.The face mask is not sealed properly
C.The air bottle needs to be refilled
D.The air supply hose has a leak