• 2022-05-29
    已知LTI系统的差分方程[img=306x25]18034af197b7755.png[/img],系统的频率响应是()
    A: [img=153x48]18034af1a86d86f.png[/img]
    B: [img=159x48]18034af1b3294f4.png[/img]
    C: [img=159x48]18034af1bd8c3fb.png[/img]
    D: [img=159x48]18034af1c9e49b4.png[/img]