成考院校在线答案
- 2023-02-12 [单选] 3、在伯德图中反映系统动态能力的是( )
- 2023-02-12 [单选] 6、调整系统的增益对系统的 ( )
- 2023-02-12 [单选] 8、二阶系统当<img alt="image" src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20220406/20220406132402_169.png" width="auto" height="auto" style="max-width:100%">时，则其单位阶跃响应将( )
- 2023-02-12 [单选] 10、已知<img alt="image" src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20220406/20220406141650_299.png" width="auto" height="auto" style="max-width:100%">当<img alt="image" src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20220406/20220406141922_756.png" width="auto" height="auto" style="max-width:100%">时<img alt="image" src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20220406/20220406133447_403.png" width="auto" height="auto" style="max-width:100%">的值为( )
- 2023-02-12 [单选] 13、当输入信号为<img alt="image" src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20220406/20220406132008_633.png" width="auto" height="auto" style="max-width:100%">（A为常数）时，则下列系统中存在稳态误差的是 ( )
- 2023-02-12 [单选] 15、比例环节的频率特性相位角<img alt="image" src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20220406/20220406133830_532.png" width="auto" height="auto" style="max-width:100%">( )
- 2023-02-12 [单选] 16、系统的传递函数<img alt="image" src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20220406/20220406120341_885.png" width="auto" height="auto" style="max-width:100%">，则系统的增益为( )
- 2023-02-12 [单选] 17、当输入函数<img alt="image" src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20220406/20220406133705_68.png" width="auto" height="auto" style="max-width:100%">，则下列系统中存在稳态误差的是( )
- 2023-02-12 [单选] 18、象函数<img alt="image" src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20220406/20220406140614_927.png" width="auto" height="auto" style="max-width:100%">的原函数为：( )
- 2023-02-12 [单选] 20、单位脉冲函数的拉普拉斯变换为( )