5. Certain watch keeping duties are necessary for the continuous operation of equipment or
plan such as the ________.
(A) purifying oil
(B) transferring oil
(C) supplying fuel from rank to engine
(D) heating heavy oil
詳解 (共 1 筆)
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必須履行某些值班職責，為了確保設備或計畫...
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某些值班職責對於設備或計劃的持續運作是...
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