单选题In a diesel engine,（） works as working medium and changes the heat energy to mechanical energy, changes the reciprocating movement to rotary moment（）Afuel spray； the burning of the fuelBthe burned gas mixture； connecting rodCmedium shaft；crankshaftDthe burned gas mixture； piston rod
单选题
In a diesel engine,（） works as working medium and changes the heat energy to mechanical energy, changes the reciprocating movement to rotary moment（）
A
fuel spray； the burning of the fuel
B
the burned gas mixture； connecting rod
C
medium shaft；crankshaft
D
the burned gas mixture； piston rod
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