阿摩線上測驗
29. ______ are used widely in marine applications in combustion equipment such as main engines, auxiliary engines and boilers.
(A)Pure gasolines
(B)Heavy fuel oils
(C)Kerosene
(D)High quality oxygen
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統計： A(0), B(6), C(0), D(0), E(0) #4054432
統計： A(0), B(6), C(0), D(0), E(0) #4054432
