• 2022-06-07 问题

    Design a digital low-pass filter with a passband edge frequency of 1kHz, a stopband edge frequency of 1.5kHz and a sampling frequency of 8kHz. What are the corresponding normalized edge frequencies ωp and ωs? A: ωp=0.25π,ωs=0.375π B: ωp=0.125π,ωs=0.1875π C: ωp=0.25, ωs=0.375 D: ωp=0.125, ωs=0.1875

    Design a digital low-pass filter with a passband edge frequency of 1kHz, a stopband edge frequency of 1.5kHz and a sampling frequency of 8kHz. What are the corresponding normalized edge frequencies ωp and ωs? A: ωp=0.25π,ωs=0.375π B: ωp=0.125π,ωs=0.1875π C: ωp=0.25, ωs=0.375 D: ωp=0.125, ωs=0.1875

  • 2021-04-14 问题

    Hadrain’s Wall was the (     ) edge of the Roman Empire.

    Hadrain’s Wall was the (     ) edge of the Roman Empire.

  • 2022-06-06 问题

    There’s a _________ (wind) path following the edge of the pond.

    There’s a _________ (wind) path following the edge of the pond.

  • 2021-04-14 问题

    In Wenlock Edge, when Nina appears in her life, the narrator's () are shaken.

    In Wenlock Edge, when Nina appears in her life, the narrator's () are shaken.

  • 2022-06-09 问题

    The “Wenlock Edge” is the title of the poem which reveals the theme of Munro’s story.

    The “Wenlock Edge” is the title of the poem which reveals the theme of Munro’s story.

  • 2022-05-30 问题

    EDGE有()种编码方。 A: 3 B: 6 C: 9 D: 12

    EDGE有()种编码方。 A: 3 B: 6 C: 9 D: 12

  • 2022-06-09 问题

    The “Wenlock Edge” is the title of the poem which reveals the theme of Munro’s story. A: 正确 B: 错误

    The “Wenlock Edge” is the title of the poem which reveals the theme of Munro’s story. A: 正确 B: 错误

  • 2021-04-14 问题

    This aesthetic(美感) is just the surface of Apple’s deeper design principle: that ___________-edge technology should be easy to use.

    This aesthetic(美感) is just the surface of Apple’s deeper design principle: that ___________-edge technology should be easy to use.

  • 2022-06-04 问题

    That night she went and sat alone upon a bench that stood beneath an oak 's tree at the edge of the walk.()

    That night she went and sat alone upon a bench that stood beneath an oak 's tree at the edge of the walk.()

  • 2022-06-08 问题

    ( ) is admittedly an autobiographical novel which draws much on Maugham’s own experience. A: The Moon and Sixpence B: The Razor's Edge C: Howard's End D: Of Human Bondage

    ( ) is admittedly an autobiographical novel which draws much on Maugham’s own experience. A: The Moon and Sixpence B: The Razor's Edge C: Howard's End D: Of Human Bondage

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