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單項選擇題

A rigid lifesaving device designed to support survivors in the water is a（）.

A.rigid liferaft
B.life float
C.inflatable liferaft
D.survival capsule

單項選擇題

A liferaft which has inflated bottom-up on the water（）.

A.should be righted by standing on the carbon dioxide cylinder，holding the righting straps，and leaning backwards
B.should be righted by standing on the life line，holding the righting straps，and leaning backwards
C.will right itself when the canopy tubes inflate
D.must be cleared of the buoyant equipment before it will right itself

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