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Handler: abstraction handlerThe content of the website is stored on the source server, and the CDN is the cache of the content. Users are only allowed to access the CDN. If the content is not on the CDN, the CDN sends a request to the source server. In this way, as long as the CDN is large enough, it can resist great attacks. However, this method has a premise that most of the content of the website must be statically cached. For websites (such as forums) with dynamic content as the main content, we must think of other ways to minimize users' requests for dynamic data.礼贤下士·善于纳谏是一个明主的作为，那时候的项羽表现是何其的良好。项羽站在河边，看着满地的将士欣慰不已，将士们如此用命，众志成城，此战必胜，项羽满怀信心。当以自我为中心的哈维尔无意间成为超级英雄后，他的生活变得有些混乱，而他上一任女友的任务就是揭露他的身份。Update to the latest version that supports 7.1. 0;FOX宣布续订《致命武器》第3季，原主演克莱恩·克劳福德此前因两次行为不当遭到惩戒，他不再参演新一季，西恩·威廉·斯科特(《美国派》《冰川时代》系列)新加盟，饰演一个新角色，将与Murtaugh(达蒙·威亚斯饰演)展开合作。