26 如圖所示電路，為兩級串接RC耦合放大電路，其中R1 = 10kΩ，R2 = 2kΩ，R3 = 2kΩ，R4 = 1kΩ，R5 = 20kΩ，R6 = 4kΩ，R7 = 3kΩ，R8 = 1kΩ，電晶體Q1與Q2之特性相同，其參數值如圖所示，則此電路之輸入阻抗Zi及輸出阻抗Z0分別為：  
(A)Zi = 1kΩ，Z0 = 1kΩ 
(B)Zi = 0.625kΩ，Z0 = 3kΩ 
 
(C)Zi = 1.667kΩ，Z0 = 1kΩ 
(D)Zi = 1kΩ，Z0 = 3kΩ