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Of the above three stages, the attack is undoubtedly the most important one. For DDOS attacks, when the attack occurs, the best defense measure is to quickly filter the attack packets on the premise of early detection of the attack to ensure the access of legitimate users. At present, for DDOS attacks, security companies mainly adopt traffic cleaning methods. A common flow cleaning architecture is shown in Figure 1.《太空堡垒卡拉狄加》（Battlestar Galactica）于2003年12月8日在美国科幻频道上开播迷你剧 ，之后在2004年10月18日于英国Sky One电视频道上首播第1季。该剧目前已获得包括2006年3项土星奖在内的7项各类大奖，包括5项艾美奖提名在内的11项各类提名，在收视率方面也成为美国科幻频道有史以来最受欢迎的原创剧集。该剧主要叙述的是人类和塞昂人之间的战争，及幸存的五万人类寻找新的家园地球的故事。Just like wars in the real world, the goal of cyber warfare is to find and exploit loopholes. The country has invested a lot of resources to collect information on the activities of other countries. They will identify the most influential figures in a country's government and society, who may play a role when they try to shake the public's views on some social and political issues.大王，请大王救救我家小姐。以新久千映的同名漫画为基础的“wakako酒”系列，是描绘OL村崎wakako在各种各样的酒馆里流浪，一个人喝酒的样子的作品。接连抬过来五抬，都掀开了，才退向一旁。"As long as they are hit, they are basically shot one at a time. The lethality of steel balls is much smaller than that of bullets. A dozen or twenty bullets can also kill one. They are animals after all, and they are still afraid of bullets. However, the speed is fast and it is really difficult to deal with." Liu Guangyuan said.