单选题The center of volume of the immersed portion of the hull is called the（）.Acenter of buoyancyBcenter of floatationCcenter of gravityDtipping center
单选题
The center of volume of the immersed portion of the hull is called the（）.
A
center of buoyancy
B
center of floatation
C
center of gravity
D
tipping center
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