组成呼吸链的复合体Ⅰ和Ⅱ中均含有（）。
A．FMN
B．FAD
C．铁硫蛋白
D．泛醌
E．细胞色素C
参考答案：C
23. The harder we work at our lessons, _____.
A．the better our grades will be
B． our grades will be better
C．will our grades be better
D．even better our grades will be
教学模式
