• 2022-10-27
    由曲线[img=37x33]17e435c33ecaafc.jpg[/img]与直线[img=77x19]17e440653511896.jpg[/img]围成平面图形的面积等于
    未知类型:{'options': ['ln2-2', ' 2-ln2', ' [img=48x33]17e440653fcadfe.jpg[/img]', ' [img=49x34]17e4406548f8ea5.jpg[/img]'], 'type': 102}