• 2022-06-11
    设函数y = y(x)由参数方程[img=104x61]1803d3461eb81d9.png[/img]确定,则[img=105x56]1803d346275301b.png[/img]
    A: -2
    B: -1
    C: [img=52x43]1803d3462eb551c.png[/img]
    D: [img=36x43]1803d3463748b21.png[/img]