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The essence of the mirror server mentioned in the previous section is to build a miniature CDN by itself. The same is true behind the high-security IP provided by major cloud service providers: the website domain name points to the high-security IP, which provides a buffer layer to clean traffic and cache the content of the source server.因为父亲的病重，家庭主妇彭妮接管了家族的马场，而她还要完成父亲的心愿，那就是让自己的赛马夺冠。她能实现这个愿望吗？The first kind of poisoning attack is called model skew. Attackers try to pollute training data to move the learning boundary of classifier classification for good and bad inputs. For example, model skew can be used to try to pollute training data and deceive classifiers to mark specific malicious binaries as benign.　　时间是永不回头的箭，当他们开始怀疑自己的时候，会否后悔当初来到是上海的决定呢？这里，真的是天堂吗？这也算不得已的法子。行走之间，戚继光已停下了脚步，咳了一声：再会了，杨公子。红椒忙吩咐丫头们清桌面、摆笔墨纸砚。