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现在，谁会关心这个？国术，那是什么？有跆拳道帅吗？满大街上，大爷大妈都在练太极拳，这些太极拳招式还真是杨露禅捣腾出来的。9-7 Administrators: Administrators are special users. Write a class named Admin that inherits the User class you wrote to complete Exercise 9-3 or Exercise 9-5. Add an attribute named privileges to store a list of strings such as "can add post", "can delete post", "can ban user", and so on. Write a method called show_privileges () that displays the administrator's permissions. Create an Admin instance and call this method. ?The most basic defense at the network layer is RFC? 2827 [3]. Using input source filtering, ISP refuses to route a packet whose source IP address does not belong to its source subnet further. Input source filtering can effectively prevent SYN flooding attacks disguised as IP. However, this method is useless at present because it is difficult to deploy on a large scale. Moreover, input source filtering cannot resist distributed attacks.节奏 - EXODescription:徐文长永远能看在别人前面，难道你已经放弃了么？左右逢源的胡宗宪，此时感觉自己是孤军奋战，赵文华走了，徐文长也走了，严党的船不让自己上，别人的门也不给自己开。On August 7, Li Qiang met with Lei Jun. Photograph by Chen Zhengbao