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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 figureFires cause huge losses to people's lives and property in our country every year. The application of flame retardant fabrics can effectively delay the spread of the fire. Especially in public places, the use of flame retardant fabrics can avoid more casualties. The difference between flame retardant fabric and ordinary fabric is that it can reduce the burning speed of textile materials to different degrees and stop burning quickly after leaving the fire source, which can reduce fire accidents caused by textiles and avoid unnecessary losses.Sledgehammer 5.2Analysis: Similar to question 9, but pay attention to this time?你出兵的同时，蒲俊会调动新训练的水军从北边沿江西进，两路联合进攻，在最短的时间内平定南方。飞行员吉斯、斯万和他们的伙伴们效力于银河星系联盟，他们分别驾驶黑、赤、青、黄、绿五头机器狮，五狮合体后能成为巨大机器人“百兽王”，用光芒神剑一次次击败魔王扎克的进攻，他们还来到阿拉斯星球，和阿劳拉公主一起，打击邪恶，捍卫正义要做勇敢的蒲公英，随风飘哪里，就算曲折我们依然不放弃，要更爱你的决定...人生不是一条平坦的道路,只有走过崎岖,遇过困境,曾经跌倒,曾经失去,经历过挫败,跨越过仇恨,而仍然能够昂首阔步迈向人生,才能锻炼出一颗坚毅不屈的心,看尽人间真善美。做一个坚强的人很难；做一个坚强的女人更难。我们要说的,就是一个女人的故事…女主角曾恺玹将挑战台湾阿信角色,从家道中落的千金小姐,勇敢迈向成功之路。她给人娇滴滴印象,私下很man,不怕杀鱼或当苦力,唯独怕跳海戏,因为7岁时溺水差点灭......