25 如圖所示電路,R1 = R2 = 2 kΩ ,C1 = 2 μF,C2 = 4 μF,試問當電路達穩定狀態後,電容器C1的端電壓為多少伏特?(A) 10 (B) 20/3 (C) 5(D) 10/3