单项选择题
A （）should be placed on the gangway.
A.life-buoy B.life-raft C.life-boat D.life craft
单项选择题 Please fill in this visitor’s （）.
单项选择题 -Will you take me to see your chief officer? -Sorry, he has gone （）. Would you like to leave a message for him?
单项选择题 --Good morning, sirs. What can I do for you? --We are the （）. We would like to see your captain.
