阿摩線上測驗
17. ________ is desirable to improve the comfort of passengers and crew aboard.
(A) Ship stabilization
(B) Engine operation
(C) Ship structure
(D) Engine Controllability
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統計： A(62), B(11), C(8), D(11), E(0) #3833321
統計： A(62), B(11), C(8), D(11), E(0) #3833321
