以下电路可能产生正弦波振荡的是：http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/b4c25a96c9be459287e4d8b0d8451c35.png
举一反三
- 根据相位平衡条件判断，下列图示电路有可能产生正弦波振荡的是（ ）。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/24e5b6c0207340e48f5aa29584884d24.png
- 正弦波振荡电路维持振荡条件是http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/e72f25ad81454b74917c0af41845d592.png
- 【单选题】下图为一个三回路振荡器的等效电路，可能振荡且为电容三点式的是（ ）。 http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/c5d1b7ff4891477bbc7552a69d3e47dc.png A. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/154878fafe94451cb79b5b2cd5b63d58.png B. http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/1d281c273bbe42c9945126502e582dd0.png C. htt
- 下列函数中为奇函数的是( ) A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/7d0e4f5547744249b8c4c0e6db0e62fc.png"> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/d19abeb7724248dca0a0c1b8017897db.png"> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/3f5cff0b4a9b441da3b9e75bd446c141.png"> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/d59a9db29be640a899356a3f1645a0dd.png">
- 设http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/5f9f81d9a1184c2eb383cb81ebbe2768.png，若http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/410a0d9f8b4a4f82a6818a45f4a3b450.png，http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/637f75734cb849caa773da5377f55f5e.png，http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/29aefd40f6c54e788587a2115dd02467.png，则http://image.zhihuishu.com/zhs/onlineexam/ueditor/201908/631634fcf7854ec88eedede14de7c1de.png之间的大小顺序为（ ）<br>