單項(xiàng)選擇題

Hand holds or straps on the underside of an inflatable liferaft are provided（）.

A.to right the raft if it capsizes
B.to carry the raft around on deck
C.for crewmen to hang on to
D.to hang the raft for drying

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單項(xiàng)選擇題

Each commercial fishing vessel must have at least one immersion suit，exposure suit，or life preserver for each（）.

A.person aboard
B.person working on deck
C.crew member
D.None of the above are correct

單項(xiàng)選擇題

Deck foam systems，designed to protect cargo areas on tankers built after January 1，1975，must have a supply of foam-producing material to operate the system at its designed rate of foam production for（）.

A.15 minutes without recharging
B.20 minutes without recharging
C.25 minutes without recharging
D.30 minutes without recharging

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