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An unstable upright equilibrium position on a vessel means that the metacenter is ______.
A.lower than the center of gravity
B.at the same height as the center of gravity
C.higher than the baseline
D.on the longitudinal centerline
参考答案
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lower than the keelB
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单选题If the cause of a sudden severe list is negative initial stability，counterflooding into empty tanks may（）.A
increase the righting momentB
cause an increase in the righting armC
bring the vessel to an upright equilibrium positionD
cause the vessel to flop to a greater angle
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