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Launching reflective attacks requires finding a large number of transmitters on the Internet. Some kinds of reflective attacks are not difficult to implement. For example, for ACK reflective attacks, only servers with open TCP ports on the Internet need to be found, and the existence of such servers on the Internet is very extensive.某人戴着口罩的商店为您讨厌的人出售礼物。 礼物分为四个级别： 使接收者感到羞耻，吓the接收器，伤害接收器并导致接收器死亡。 您是否讨厌某人给他这份礼物？ 您的仇恨是他们的责任。　　安托万借用巴尔扎克的小说语言写了一篇文章，但圣旨下：白虎将军赐封白虎侯。"What is that big wasp?" I asked.In addition, they apply different stages of design, and the appearance mode is used in the early stage of design, because the system needs to rely on appearance in the early stage, while the adapter is applied after the design is completed. When it is found that the designed classes cannot work together, the adapter mode can be adopted. However, in many cases, the use of adapter mode should be considered at the early stage of design, such as involving a large number of third-party application interfaces. Proxy mode is that after the mode is completed, it wants to be provided to other clients in the form of services for calling. At this time, other clients can use proxy mode to access the module.