29. What trend is developed for ship machineries under the cost reduction incentive for reducing the number of crews onboard?
(A) Automation
(B) Integration
(C) Safety operation
(D) Standardization

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統計: A(660), B(84), C(250), D(106), E(0) #2887331

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#6034401
在減少船員數量可以達到節約成本的誘因下,...
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