• 2022-05-27
    有[img=15x19]18031c7a6fa0f6c.png[/img]个顶点的无向完全图有多少条边?
    A: [img=92x25]18031c7a791bf91.png[/img]
    B: [img=92x25]18031c7a813b208.png[/img]
    C: [img=24x22]18031c7a8a2f77c.png[/img]
    D: [img=60x24]18031c7a9339005.png[/img]