• 2022-06-10
    以曲线[img=105x49]1803bf6f0421fef.png[/img]为母线,以[img=9x14]1803bf6f0c08bb4.png[/img]轴为旋转轴的旋转曲面的方程为( ).
    A: [img=151x30]1803bf6f1658bf0.png[/img]
    B: [img=150x31]1803bf6f223e764.png[/img]
    C: [img=150x30]1803bf6f2ee2687.png[/img]
    D: [img=117x27]1803bf6f36a55e7.png[/img]
  • 举一反三