21. Complex I of the electron transport chain oxidizes____，reduces_，and__protons in the process.
(A) FADH2, coenzyme Q, doesn't pump
(B) FADH2, coenzyme Q, pumps
(C) NADH, coenzyme Q, doesn't pump
(D) NADH, coenzyme Q, pumps

1. 題目解析這道題目主要考察電子傳遞...