單項(xiàng)選擇題

Under the rules, the term vessel includes（）.

A.non-self-propelled raft
B.seaplanes
C.hovercrafts
D.All of the above

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I（）rather not shift the rice to hatch No.2.

A.shall
B.should
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單項(xiàng)選擇題

If there’s a fire aboard your vessel, you should first（）.

A.notify the competent authorities
B.sound the alarm
C.have passengers put on life preservers
D.cut off air supply to the fire