44 When at rest on even keel, the vessel’s centre of buoyancy is directly below the centre of _______ as well as below the metacenter.
(A)velocity
(B)speed
(C)gravity
(D)waterline

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統計: A(40), B(33), C(101), D(80), E(0) #852047

詳解 (共 3 筆)

#3372220

(A)velocity  周轉率
(B)speed   速度
(C)gravity  重力
(D)waterline  水線

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#3788858

(A)velocity 速度/速率/迅速
(B)speed
速度/速率/飛速/快速
(C)gravity
重力/引力/地心引力/嚴重性 (D)waterline 水線/吃水線 buoyancy 浮力/輕快/樂觀 keel龍骨 

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#5981736
44 當船隻在水平龍骨上靜止時,其浮力中...
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