问题
单项选择题
The geometric center of the waterplane area is called the（）.
A.center of buoyancy
B.center of gravity
C.metacenter
D.center of flotation
答案
参考答案：D
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The geometric center of the waterplane area is called the（）.
A.center of buoyancy
B.center of gravity
C.metacenter
D.center of flotation
参考答案：D