• 2022-10-27
    过点[img=55x25]180345bf64ef3b3.png[/img]和[img=65x25]180345bf6d65a57.png[/img]且与平面[img=102x22]180345bf75a3b21.png[/img] 垂直的的平面方程为
    未知类型:{'options': ['', '', '', ''], 'type': 102}