40.船舶重心之英文名稱為:
(A)Center of gravity
(B)Center of buoyancy
(C)Metacenter
(D)Center of curvature
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統計: A(36), B(6), C(5), D(4), E(0) #1202843
統計: A(36), B(6), C(5), D(4), E(0) #1202843