单选题The important initial stability parameter，GM，is the（）.Ametacentric heightBheight of the metacenter above the keelCheight of the center of buoyancy above the keelDheight of the center of gravity above the keel
单选题
The important initial stability parameter，GM，is the（）.
A
metacentric height
B
height of the metacenter above the keel
C
height of the center of buoyancy above the keel
D
height of the center of gravity above the keel
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