48 ______is the change in stability of a vessel caused by liquids moving about freely in a tank or hold.
 
(A)Side effect 
(B)Free surge effect 
(C) Free surface effect  
(D)Cause and effect

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統計: A(21), B(17), C(108), D(32), E(0) #1811442

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語意:自由液面效應是指液體在船艙或液艙...
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