單項選擇題

Check （）(危險區(qū)) and report , please.

A. danger area
B. safety area
C. danger room
D. safety room

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單項選擇題

They should take care of the （系泊纜繩）（）.

A. head lines
B. mooring lines
C. breast lines
D. stern lines

單項選擇題

Pay attention to the （）（安全）of the gangway.

A.danger
B.safe
C.safely
D.safety