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Zhang Liang took six classes, each lasting 15 minutes, and was said to have prepared for three or four months. In the final recording stage, he flew from Shanghai to Beijing, although it was only audio. It is enough to show that the mode of education and recording classes is very heavy."What happened later?" I knew the story was far from over, so I couldn't wait to ask him.Another parent said that when his child was three or four years old, he found that his child had inattention and other phenomena, but he did not know how to solve them at that time, thus seriously affecting his child's academic performance after going to school. "The children have also developed a rebellious attitude towards our discipline and have gradually become naughty children in the class. We are especially anxious and have been recommended to enroll in the thinking ability training course."故事讲述主人公・天童勇树（武子直辉）是一名前小学教师的自由职业者。为了找工作，他去拜访了学生时代的同班同学兼议员秘书的花野薫（深泽大河），结果被「闪耀新党」的古刚荣进（横山真史）发掘，于是就参加了市长选举。Using the service provided by the victim host or the defects in the transmission protocol, the victim host repeatedly sends out specific service requests at high speed, which makes the victim host unable to process all normal requests in time.SYN attack is a kind of DOS attack. It takes advantage of TCP protocol defects and consumes CPU and memory resources by sending a large number of semi-connection requests. SYN attacks can not only affect hosts, but also harm network systems such as routers and firewalls. In fact, SYN attacks can be implemented as long as these systems turn on TCP services no matter what systems are targeted. As can be seen from the above figure, the server receives the connection request (syn=j), adds this information to the unconnected queue, and sends the request packet to the client (syn=k, ack=j+1), then enters the SYN_RECV state. When the server does not receive an acknowledgement packet from the client, it retransmits the request packet and does not delete this entry from the non-connection queue until the timeout. With IP spoofing, SYN attacks can achieve good results, Typically, clients forge a large number of non-existent IP addresses in a short period of time, SYN packets are continuously sent to the server, and the server replies to the confirmation packets and waits for the confirmation of the customer. Since the source address does not exist, the server needs to continuously resend until it timeout. These forged SYN packets will occupy the unconnected queue for a long time, normal SYN requests will be discarded, the target system will run slowly, and in serious cases, the network will be blocked or even the system will be paralyzed.　　制作方表示，学院长将萨拉关在小黑屋内，同班同学纷纷欺负萨拉等的场景“将会超越想象”。拼命忍耐的萨拉可谓是“平成的阿信”。