• 2022-06-06
    设积分环节的传递函数为G(s)=,则其频率特性幅值A(ω)=()。
    A:
    B:
    C:
    D:
  • B

    举一反三

    内容

    • 0

      由苯合成<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201912/71faeb69bb654ff6bcb8317f2b46e805.png" >不合理的路线是()。 A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201912/9a43529621dd442aa66725af170e8bbe.png" > B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201912/4ff9332196ec46359a0dcb19181be7aa.png" > C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201912/1a4c85721b604007937a62d2adec1f6a.png" >

    • 1

      计算根轨迹渐近线倾角的公式为()。 A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201912/608af0d299964c8f8821188092a56985.png" > B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201912/61795bdbc94c4921a02437814d1c0e29.png" > C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201912/6742e5f09f104644a3cf9be07ba7bdbd.png" > D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201912/477de697b8804d4ab36159a175ed07d9.png" >

    • 2

      下列属于{100}晶面族的晶面有()。 A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201912/0add32d287a940f69e91fbae943eee76.png"> B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201912/13d75d49e079433096f649f812fc69a6.png"> C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201912/98be2e9d508448e48e920a1a5444366c.png"> D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201912/7e55102ed4254dd2ad54dd1c36e0dd2a.png">

    • 3

      下列化合物中,不具有极性的是()。 A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201912/547b09efddc44eafa464beb5043142a7.png"> B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201912/042b473209bc447b8f7914e4efe318d2.png"> C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201912/60e6fcf97d024d519962631efc7a0e83.png"> D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201912/b06bf6679a754656b24920d3a7c120a0.png">

    • 4

      带有惯性的微分环节的传递函数G(s)=()。 A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201912/1e468cf68c7849aa9b9a5d0fce83a57f.png" > B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201912/74ed775bce7e49a6be1cd89313ff04b4.png" > C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201912/223058cfe6df4920b52d0e561380e224.png" > D: s