47 船舶的俯仰狀況為 Even Keel 是指下列何者?
(A)俯仰差
(B)艏俯
(C)縱平浮
(D)艉俯
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統計: A(2), B(2), C(32), D(0), E(0) #405483
統計: A(2), B(2), C(32), D(0), E(0) #405483