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不仅是要抓住长鞭，而且还要从自己手中夺走。In the process of DNS resolution, the client initiates a query request, and the DNS server may need to make additional queries to complete the resolution process and give a response, which will consume certain computing and network resources. If an attacker uses a large number of controlled hosts to continuously send resolution requests for different domain names, the cache of the DNS server will be continuously refreshed, and the failure of a large number of resolution requests to hit the cache will cause the DNS server to consume additional resources for iterative queries, which will greatly increase the resource consumption of the DNS server.1991年夏，春日恭介、鲇川圆、桧山光这个关系微妙的三人组终于尘埃落定，阿光远赴美国求学，恭介和阿圆的关系也正式确立。这天早晨，恭介接到一通奇怪的电话，电话那边焦急地提醒他要注意今天的汽车。恭介不以为意，如常一般上街，结果遭遇严重车祸。由于家族的特殊体质，恭介的灵魂被撞入一个时空隧道，继而落到了3年后的世界。在1994年的未来，恭介和阿圆结为夫妇，二人各自围了理想而努力。恭介远赴波西尼亚战场拍摄，却因3年前的恭介的到来被撞进时空隧道失踪。1991年的恭介遇到了久未谋面的阿光，也见到了更为成熟的阿圆，他该如何返回自己的世界呢？The difference between them is that each policy class in the policy mode is equal and parallel, and there is no connection between them. Therefore, customers must be familiar with the functions of these policy classes so that customers can actively switch algorithms at any time. However, in the state mode, the behavior corresponding to the state and the state has long been encapsulated, and the switching between states has long been stipulated to be completed. The "change of behavior" occurs within the state mode. For customers, they do not need to know these details. This is what state patterns do洪霖皱眉：秦大夫难道一定要将令媛嫁入庄户人家？还是别有他图？脑中晃过板栗的身影，禁不住眼睛就眯了起来。15岁花样滑冰运动员Kayla从加拿大到英国的生活彻底发生了改变，因为其双胞胎兄长Mac在一所传奇的冰球学院获得了一席之地。她对父母决定把哥哥的野心置于自己之前感到心烦意乱，Kayla如今必须在其作为超级明星的哥哥的阴影下确定自己在滑冰场上的位置。