你可能感興趣的試題

What is the significance of the broken magenta lines which roughly parallel the shore between Roanoke Point and Orient Point on Long Island（）.

A.They mark the limits of breakers in that area
B.These lines warn the mariner of submerged rocks
C.They mark the boundary lines of fish trap areas
D.These lines warn the mariner of submerged pipelines

單項(xiàng)選擇題

What is the most important source of information to be used in correcting charts and keeping them up to date（）.

A.Fleet Guides
B.Notice to Mariners
C.Sailing Directions
D.Pilot Charts