• 2022-05-27
    用一条长为16cm的铁丝围成一个矩形,设矩形的长为xcm,要使矩形的面积大于12[img=27x17]1803d011132cf91.jpg[/img]
    A: [img=45x23]1803d0111c307b1.jpg[/img]
    B: [img=45x26]1803d011242a757.jpg[/img]
    C: [img=46x27]1803d0112c4d3c2.jpg[/img]
    D: [img=44x23]1803d01134b40b2.jpg[/img]
  • 举一反三