舷梯口应放置一个救生圈。（）<br>A:A life craft should be located on the gangway.<br>B:A life-buoy should be located at the gangway door.<br>C:A life-raft should be located on the gangway.<br>D:A life boat should be located on the gangway.

舷梯口应放置一个救生圈。（）
A:A life craft should be located on the gangway.
B:A life-buoy should be located at the gangway door.
C:A life-raft should be located on the gangway.
D:A life boat should be located on the gangway.

出自：船舶水手证

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