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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.所以他很坦然地迎接武涉进入临淄，即便是临淄城里潜伏了很多刘邦的密探，韩信也全然不在乎。"Supporting" is also called "lifting". 1. Holding and supporting; Carry. Song Lu You's poem "Small City" reads: "The window of the temporary rest porch is still swept away during the flood season, and the book and sword of the long journey are also supported." The second chapter of Part a of Kang Youwei's "Datong Book" reads: "It is very clear that the crying is full of ears, the water walks away, the family carries something, the face is covered with tears, and the sky is swearing." 2. Means a container that can be suspended. Tang Du Fu's poem "Stone Shrine" reads: "Bitter clouds are straight away and cannot be supported." 3. Care; Foster. "Biography of Xiao Jingxian in the Book of Southern Qi": "Jing Xian was seldom lost by his father. He was very kind and Taizu Jia. And from the official capital city, often support each other." Tang Liu Deren's poem "Express My Feelings in the Mountain and Send Ding Xueshi" reads: "I am very fortunate to be clumsy and happy, and I have no doubt about my support." Volume 13 of "Surprise at the Second Moment": "The magistrate of a county called the Liu family's son to see it and said to Zhisheng, 'Such a child is just the right support." " Shen Congwen's Wang周小北、王媛、韩文静三人是大学同学兼闺蜜，毕业后同在一个城市工作、生活。生于传统家庭的周小北，在与相恋多年的男友樊斌结婚后，发现婚后生活并没有想象中的那么如意，经历了一系列的变故二人离婚。最终她与暗恋自己多年的李理走到了一起。王媛出身贫困，但凭借自立自强、努力拼搏，最终成为都市白领，改变了整个家庭的窘境。在经历过感情的起起落落后，她终于接受了对她默默付出的胖子的爱情。家庭条件优越的韩文静，经营着一间工作室。在经历了感情生活的分分合合后，遇见了医生成晓峰，千方百计追到手后，经过无数磨砺，与之终成眷属。历尽一系列波折，三个女青年相互鼓励、相互安慰，三人因为生活的磨砺逐渐变得成熟，社会角色和人生方向也在迷途后更加清晰。由薛景求饰演的载文，在少管所度过了艰难的少年时光，在地狱般的那里他只有民在一个朋友，并且亲如兄弟。出狱后他们加入了黑势力。