单项选择题
The center of gravity of a freely swinging load suspended from a pedestal crane acts as if it were located at the（）.
A.counterweight
B.pedestal
C.longitudinal centerline
D.point of suspension
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A.bracing
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C.blocking
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Stanchions prevent the entire deck load on a ship from being carried by the（）.
A.bulkheads
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Stable equilibrium for a vessel means that the metacenter is（）.
A.at a lower level than the baseline
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