问题
单项选择题
The center of volume of the immersed portion of the hull is called the（）.
A.center of buoyancy
B.center of flotation
C.center of gravity
D.tipping center
答案
参考答案：A
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The center of volume of the immersed portion of the hull is called the（）.
A.center of buoyancy
B.center of flotation
C.center of gravity
D.tipping center
参考答案：A