• 2022-05-31
    设[img=13x19]180322a3d97815b.png[/img]:[img=134x26]180322a3e1bb15d.png[/img]内侧,则二重闭合曲线积分[img=262x48]180322a3ecc08a2.png[/img]的值
    A: [img=63x43]180322a3f5f57cb.png[/img]
    B: [img=63x43]180322a3fe1162e.png[/img]
    C: [img=63x43]180322a4069358d.png[/img]
    D: [img=50x24]180322a40ed0cae.png[/img]
    E: [img=63x43]180322a4178f022.png[/img]
    F: [img=63x43]180322a41f82a6f.png[/img]
    G: [img=63x43]180322a428c4fce.png[/img]
    H: [img=63x43]180322a4314d77f.png[/img]
    I: [img=50x24]180322a43965f4f.png[/img]
    J: [img=63x43]180322a4420a206.png[/img]
  • 举一反三