单项选择题
A.immediately put the rudder over hard right
B.immediately put the rudder over hard left
C.immediately put the engines astern
D.wait until the stern is well clear of the man and then put the rudder over hard right
单项选择题 A certificated lifeboatman assigned to command the lifeboat should（）.
单项选择题 （）outlines the Admiralty method of Harmonic tidal analysis for long and short observation periods plus a volume on datums for hydrographic surveys.
单项选择题 （）offers a detailed description of tidal theory and its application to the analysis and prediction of tides and tidal streams.