• 2022-06-19
    已知曲面[img=118x26]18038337f3f33bf.png[/img]上点P处的切平面平行于平面[img=123x22]18038337fc62fc0.png[/img],则点P的坐标为( ).
    A: [img=55x25]1803833804cfb69.png[/img]
    B: [img=69x25]180383380c985c4.png[/img]
    C: [img=77x25]180383381530998.png[/img]
    D: [img=83x25]180383381e6cc85.png[/img]
  • 举一反三