單項選擇題

Aluminum lifeboats are subject to damage by electrolytic corrosion (the aluminum being eaten away). In working around boats of aluminum you must be very careful（）.

A.to keep the boats covered at all times
B.not to leave steel or iron tools lying in or near these boats
C.to keep an electric charge on the hull at all times
D.to rinse these boats regularly with salt water

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單項選擇題

All inflatable liferafts have（）.

A.safety straps from the overhead
B.built in seats
C.releasing hooks at each end
D.water stabilizing pockets

單項選擇題

After conducting an abandonment drill，the Master or person in charge of a ship shall log（）.

A.the names of crew members who participated in the drill
B.the length of time that each motor propelled lifeboat was operated in the drill
C.the length of time the lifeboat was in the water
D.the time it took to lower the boat

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Aluminum lifeboats are subject to damage by electrolytic corrosion (the aluminum being eaten away). In working around boats of aluminum you must be very careful（）.

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All inflatable liferafts have（）.

After conducting an abandonment drill，the Master or person in charge of a ship shall log（）.

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After conducting an abandonment drill，the Master or person in charge of a ship shall log（）.