6. ______ is a life saving device onboard ships that can be either of the rigid or inflatable type. If in the inflatable type, it has a protective canopy to preserve the lives of persons in distress when abandoning vessels.
(A) Lifejacket
(B) Lifeboat
(C) Liferaft
(D) Lifering

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統計: A(28), B(50), C(187), D(4), E(0) #2652690

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