阿摩線上測驗
4. _________ are used widely in marine applications in combustion equipment such as main
engines, auxiliary engines and boilers.
(A) Heavy fuel oils
(B) Coals
(C) Paraffins
(D) Gasoline oils
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統計： A(873), B(37), C(58), D(56), E(0) #3039158
統計： A(873), B(37), C(58), D(56), E(0) #3039158
