• 2022-06-07
    设函数[img=64x24]17e43f7cb37cf88.png[/img],则f[f(x)]=()
    未知类型:{'options': ['', ' [img=23x22]17e43f7cc56c27a.png[/img]', ' [img=21x24]17e43f7ccf0de9c.png[/img]', ' [img=21x22]17e43f7cd8dd0e6.png[/img]'], 'type': 102}