25. An engine has a maximum theoretical efficiency of 36%. The temperature difference between the input and the output is 432°C. The temperature of the exhaust is:
(A)432°C
(B)645°C
(C)768°C
(D)840°C
(E)None of the above

考點觀念本題測驗考生是否熟悉卡諾循環（...