const urls={
    "gc":[
        "http://4dscene.4dage.com/culturalrelics/ZZBBH/Model.html?m=BBH_nt87&v=1",
        "http://4dscene.4dage.com/culturalrelics/DLBWG/Model.html?m=dl01&v=1",
        "http://4dscene.4dage.com/culturalrelics/ZZBBH/Model.html?m=BBH_nt87&v=1",
        "http://4dscene.4dage.com/culturalrelics/DLBWG/Model.html?m=dl01&v=1",
        "http://4dscene.4dage.com/culturalrelics/ZZBBH/Model.html?m=BBH_nt87&v=1",
        "http://4dscene.4dage.com/culturalrelics/DLBWG/Model.html?m=dl01&v=1",
        "http://4dscene.4dage.com/culturalrelics/ZZBBH/Model.html?m=BBH_nt87&v=1",
        "http://4dscene.4dage.com/culturalrelics/DLBWG/Model.html?m=dl01&v=1",
        "http://4dscene.4dage.com/culturalrelics/ZZBBH/Model.html?m=BBH_nt87&v=1",
        "http://4dscene.4dage.com/culturalrelics/DLBWG/Model.html?m=dl01&v=1",
        "http://4dscene.4dage.com/culturalrelics/ZZBBH/Model.html?m=BBH_nt87&v=1",
        "http://4dscene.4dage.com/culturalrelics/DLBWG/Model.html?m=dl01&v=1",
        "http://4dscene.4dage.com/culturalrelics/ZZBBH/Model.html?m=BBH_nt87&v=1",
        "http://4dscene.4dage.com/culturalrelics/DLBWG/Model.html?m=dl01&v=1",
        "http://4dscene.4dage.com/culturalrelics/ZZBBH/Model.html?m=BBH_nt87&v=1",
        "http://4dscene.4dage.com/culturalrelics/DLBWG/Model.html?m=dl01&v=1",
        "http://4dscene.4dage.com/culturalrelics/ZZBBH/Model.html?m=BBH_nt87&v=1",
        "http://4dscene.4dage.com/culturalrelics/DLBWG/Model.html?m=dl01&v=1",
        "http://4dscene.4dage.com/culturalrelics/ZZBBH/Model.html?m=BBH_nt87&v=1",
        "http://4dscene.4dage.com/culturalrelics/DLBWG/Model.html?m=dl01&v=1",
        "http://4dscene.4dage.com/culturalrelics/ZZBBH/Model.html?m=BBH_nt87&v=1",
        "http://4dscene.4dage.com/culturalrelics/DLBWG/Model.html?m=dl01&v=1",
        "http://4dscene.4dage.com/culturalrelics/ZZBBH/Model.html?m=BBH_nt87&v=1",
        "http://4dscene.4dage.com/culturalrelics/DLBWG/Model.html?m=dl01&v=1",
        "http://4dscene.4dage.com/culturalrelics/ZZBBH/Model.html?m=BBH_nt87&v=1",
        "http://4dscene.4dage.com/culturalrelics/DLBWG/Model.html?m=dl01&v=1",
        "http://4dscene.4dage.com/culturalrelics/ZZBBH/Model.html?m=BBH_nt87&v=1",
        "http://4dscene.4dage.com/culturalrelics/DLBWG/Model.html?m=dl01&v=1",
    ]
}