单项选择题

A.The sea anchor deploysB.The floor inflatesC.If upside……

An inflatable liferaft is thrown into the water from a sinking vessel. What occurs automatically after the painter trips the CO₂ bottles to inflate the raft?（）

A.The sea anchor deploys
B.The floor inflates
C.If upside down，the craft rights itself
D.The painter detaches from the raft

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单项选择题You hear the general alarm and ship’s whistle sound for over 10 seconds. Traditionally，this is the signal for（）.

A.abandon ship
B.dismissal from fire and emergency stations
C.fire and emergency
D.man overboard

单项选择题Is extra power available（）emergency while maneuvering?

A.for
B.in
C.during
D.to