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TCP is connection-oriented, and a connection must be established between either side before sending data to the other. In TCP/IP protocol, TCP protocol provides reliable connection service, and the connection is initialized by three-way handshake. The purpose of the three-way handshake is to synchronize the serial numbers and acknowledgement numbers of both parties and exchange TCP window size information. The process of shaking hands can be represented by the following figure在拉古斯王国的城池陷落前，曾有一个戴着誓言颈环的男子出现在泰德的梦中，并告诉他：“泰德，总有一天你会知道自己真正的使命是什么的。”而这个梦反复出现在他的梦中，使泰德困惑不已。此时的他和好友米卡杰已经成为了巴尔斯布鲁克帝国陆军士官学校的优秀学生。他们为了能进入梦想已久的霍普鲁克要塞而向毕业考试发起了挑战。对于毕业后的生活充满了期待。But we didn't realize it until the first big mouse emerged from the trench of the position. The big rats under the "earth beam" are only a few that dig shallow holes. Most of the deep digging is simply not visible from the surface, This is what I said just now. If you dig shallow, you can barely hit it. You can't see it deep, There is no way out, At last this thing was dug up and emerged directly from the trench wall. Then don't even shake the soil on your body, Bite at the sight of men, As the number of drillings grows, In the end, there were several times more rats than people in the position. Forming a situation of several besieging a soldier, Seeing the urgency of the situation, But 'the lame man caught up with the uneven road' (this is a folk proverb, meaning to make things worse, the house leaks when it rains at night), The big wasps that were repelled for the first time launched another attack, or from the left and right wings, in your words, this also formed the "open space" to cooperate in the battle. It is very strange that the big wasps did not attack the big rats on the ground at one time, but only stung people. They are obviously "a group" of dogs. Alas, then we will fight too badly. " Zhang Xiaobo said with a long sigh here, and I couldn't help but be surprised. This big mouse can dig out more than 100 meters of passages underground in more than half an hour. How fast is this? That's a speed of more than 30 centimeters per minute. Although it is said that the soil on the southern border is softer and no harder than that in the north, it can dig more than 30 centimeters per minute. This speed is really staggering.大学女生美雪（内山理名饰）将男友擅自带回寝室，完全不顾室友直美（尾野真千子饰）的感受。某日美雪和男友吵架了，回来后却发现男友和直美混在一起，并开始无视自己的存在。(2) Every week we will write down the work summary of the previous week and the work plan of the next week.名门高中椚椚丘中学的垫底班级3年E班，在新一学年迎来了一个奇怪的老师（二宫和也 配音）。这个老师长着圆圆的黄色大脑袋以及黏滑恶心的触角，原来他就是不久前将月亮炸成月牙的罪魁祸首。日本防务省特种部队的精英乌间惟臣（椎名桔平 饰）向学生们介绍了怪物的情况，他拥有20马赫的超快速度，人类寻常的武器对他完全不起作用。为了阻止怪物一年后摧毁地球的阴谋，人类必须想方设法除掉他。而怪物自告奋勇愿意出任3年E班的班主任，于是乎手无缚鸡之力的学生们担当起刺杀怪物的重任。此后，学生们接受了乌间的严格培训，而杀手比琪（知英 饰）、智能机器人自律思考固定炮台（桥本环奈 饰）、转学生堀部系成（加藤清史郎 饰）以及教官鹰冈明（高岛政伸 饰）等强大对手也相继来到这间暗杀教室内，搞怪的“杀老师”将面临永无止息的刺杀行动……本片根据松井优征的超人气漫画改编。