For a floating vessel,true mean draft is always the（）.<br>A:average of the observed drafts<br>B:draft at the centre of flotation<br>C:draft corresponding to the center of buoyancy<br>D:metacentric height

For a floating vessel,true mean draft is always the（）.
A:average of the observed drafts
B:draft at the centre of flotation
C:draft corresponding to the center of buoyancy
D:metacentric height

出自：海船船员证

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