• 2022-07-01
    设C为[img=50x26]1803d35bfa2bc62.png[/img]上点(0,0)到(1,1)的一段弧,则曲线积分 [img=115x48]1803d35c032bf24.png[/img]
    A: [img=142x51]1803d35c0de8332.png[/img]
    B: [img=142x51]1803d35c1a59544.png[/img]
    C: [img=127x51]1803d35c2315b0b.png[/img]
    D: [img=66x51]1803d35c2c53367.png[/img]