图示分压偏置放大电路中，若减小RB1，则集电极电流IC将（ ）。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201907/60ae643794f84697a49e08f6f84257d4.png
举一反三
- 图示力F=2kN对Ａ点之矩为（ ）。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201907/24ee428f91c546e296032ec821305836.png
- 电路如图所示，若Rb的阻值减小，而电路其它元件参数不变，则电压放大倍数|AV|将（ ）。<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201907/b208ba4e843e4caba0c4c54a5118f3e2.png"/> A: 增大 B: 不变 C: 无法确定 D: 减小
- 设k为回归模型中的参数个数，n为样本容量。则对多元线性回归方程进行显著性检验时，所用的F统计量可表示为 A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201907/f3512021c2884e8fa28824be2d54c92e.png"/> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201907/0e1e4747cb854813bc11295552c5413e.png"/> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201907/ab1f63adef4c41819e87e27213a05525.png"/> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201907/d31fc5b1717a47b8aac637efca4447d3.png"/>
- 在图示固定偏置放大电路中，当RC、RB的参数分别为（ ）时，该电路的静态工作点处在放大区。设三极管的β＝100。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201907/1dfc077f02074cec9a9ef7285feca67e.png
- 以下操作，可以将数据放入列表A的是：（ ） A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201907/be509830d9fa481e937a24d1e2d9ad46.png" /> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201907/56c2e754f3684727b65b6eb649aff2fa.png" /> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201907/a591d719880b457ea72ff0b84b29d4e9.png" /> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201907/deca818437954173af522e786916847f.png" />