• 2022-06-19
    设函数[img=39x20]18034b0eb08c5d3.jpg[/img],则曲线的拐点
    A: [img=34x14]18034b0eb9f7246.jpg[/img]
    B: [img=32x19]18034b0ec1bc6c4.jpg[/img]
    C: [img=33x17]18034b0ecaaf283.jpg[/img]
    D: [img=32x19]18034b0ed4648b4.jpg[/img]
  • 举一反三