23. With the initiative of improving fuel economy, fuel treatments become essential for propulsive
diesel engine due to the usage of ___________.
(A) Low Sulphur Fuel Oil
(B) Residual oil
(C) Marine Diesel Oil
(D) Marine Gas Oil
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統計: A(306), B(447), C(318), D(73), E(0) #3039177
統計: A(306), B(447), C(318), D(73), E(0) #3039177