• 2022-06-19
    空间曲线[img=178x61]1803d4598610533.png[/img]在[img=31x23]1803d4598e7180e.png[/img]上的投影曲线的参数方程为( ).
    A: [img=409x29]1803d4599a3653d.png[/img]
    B: [img=340x29]1803d459a503bb0.png[/img]
    C: [img=354x29]1803d459b187bbe.png[/img]
    D: [img=351x29]1803d459bd69143.png[/img]