複選題37、According to the circuit shown in the following Figure 10, please choose the correct descriptions. (A) D1 on, D2 on (B) I1 = 1mA (C) D3 off, D4 on (D) I2 = 4/3 mA ( AB ) ( ACD ) ( ABD ) ( BCD ) ( ABD ) ( ABC ) 第 7 頁，共 9 頁 D1 D2 5kΩ 10kΩ 10V I 1 -10V D3 D4 10kΩ 5kΩ 10V -10V I 2 D3 D4 10kΩ 5kΩ 10V -10V I 2 Figure 10