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The 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.公元2008年5月12日14时28分，中国四川省汶川县发生里氏8级大地震，强烈的地震甚至波及全国十几个省，而位于震中附近的周边城镇则蒙受巨大灾难。相当初在彭蠡泽，范青也是这么着，说起来每次都是为了船只的事情。儿不孝。Also, you can register multiple delegates for an event with + =.Forty-third fire control technical service institutions in any of the following circumstances, the licensing of the public security organ fire control institutions shall cancel its qualification:Incident: Around March 2018, a female performing arts student claimed to have been sexually harassed by famous director Cao Genxuan.