单项选择题
A.Admiralty Tide Tables B.Admiralty Tidal Stream Atlases C.Admiralty Manual of Tides D.Admiralty Tidal Handbooks
A.Ocean Passages for the World B.Symbols and Abbreviations used on Admiralty Charts,Chart 5011 C.IALA Maritime Buoyage System D.The Mariners Handbook
A.pulling a submarine cable B.engaged in diving operations C.engaged in underway replenishment D.transferring explosives