搜题请搜索小程序“爱下问搜题”
问题 问答题

图为分压式偏置稳定放大电路，若rbe=1.6kΩ，β=50，求电压放大倍数Au，若射极旁路电容CE开路，则电压放大倍数变为多大？

答案

参考答案：

其中，R’L=10//10=5(kΩ)

填空题

用测回法观测水平角，可以消除仪器误差中的视准轴误差横轴误差（）
查看答案
填空题

用所给词的正确形式填空。

1. That was one of the            days in 1998. (bad)

2. We have            rain this year than last year. (much)

3. The question isn't so hard. Everyone can answer it            (easy).

4. Everybody needs            help. (other)

5. "What can we do for the people?" They often ask           . (they)

6. We mustn't hunt the            animals. (protect)

7. Who jumps            in your class? (high)

8. It isn't            to talk to him. He won't listen to you. (use)

9. I            don't know why he isn't coming to the party tonight. (real)

10. How            it is snowing! (heavy)

查看答案