An unstable upright equilibrium position on a vessel means that the metacenter is（）.<br>A:lower than the center of gravity<br>B:at the same height as the center of gravity<br>C:higher than the baseline<br>D:on the longitudinal centerline

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

出自：海船船员证

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