阿摩線上測驗
18. The concept of _______ , aimed at increasing the thermal efficiency of a heat engine, uses heat that would normally be rejected into the low-temperature sink to preheat the air into the combustion chamber.
(A)regeneration
(B)reheat
(C)re-expansion
(D)superheat
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統計： A(1), B(1), C(0), D(0), E(0) #4067963
統計： A(1), B(1), C(0), D(0), E(0) #4067963
