问题
单项选择题
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
答案
参考答案：A