单选题In order to determine the trimming arm for your vessel at any particular draft，which of the following would you compare?（）.ALongitudinal center of buoyancy and longitudinal center of gravityBLongitudinal center of floatation and longitudinal center of gravityCLongitudinal center of floatation and longitudinal center of buoyancyDLongitudinal tipping center and longitudinal center of gravity
单选题
In order to determine the trimming arm for your vessel at any particular draft，which of the following would you compare?（）.
A
Longitudinal center of buoyancy and longitudinal center of gravity
B
Longitudinal center of floatation and longitudinal center of gravity
C
Longitudinal center of floatation and longitudinal center of buoyancy
D
Longitudinal tipping center and longitudinal center of gravity
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