单选题A neutral equilibrium position for a vessel means that the metacenter is（）.Alower than the keelBat the same height as the center of gravityCexactly at midshipsDat the center of the waterplane area
单选题
A neutral equilibrium position for a vessel means that the metacenter is（）.
A
lower than the keel
B
at the same height as the center of gravity
C
exactly at midships
D
at the center of the waterplane area
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