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

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单项选择题

A.lower KG
B.smaller GM
C.smaller roll angle
D.larger GZ

单项选择题

A.increase the righting moment
B.increase the righting arm
C.increase list or trim
D.decrease list or trim

单项选择题

A.metacentric height is positive
B.metacentric radius is positive
C.KG exceeds maximum allowable limits
D.free surfaces are excessive