單項(xiàng)選擇題

A certificated lifeboatman assigned to command the lifeboat should（）.

A.be the first individual to board the craft
B.drain the hydraulic pressure before lowering the craft
C.have a list of the persons assigned to the lifeboat
D.All of the above

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單項(xiàng)選擇題

（）outlines the Admiralty method of Harmonic tidal analysis for long and short observation periods plus a volume on datums for hydrographic surveys.

A.Ocean Passages for the World
B.Admiralty Tidal Stream Atlases
C.Admiralty Manual of Tides
D.Admiralty Tidal Handbooks

單項(xiàng)選擇題

（）offers a detailed description of tidal theory and its application to the analysis and prediction of tides and tidal streams.

A.Ocean Passages for the World
B.Admiralty Tidal Stream Atlases
C.Admiralty Manual of Tides
D.Admiralty Tidal Handbooks