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TCB (TCP? Transport Control Block is a transport protocol data structure that contains all the information of the connection (in fact, in many operating systems, it is a queue used to process inbound connection requests. The queue holds TCP connection items that are in a half-open state and items that have established a full connection but have not yet been extracted by the application through an accept () call). The amount of memory occupied by a single TCB depends on the implementation of TCP options and other functions used in the connection. Usually a TCB has at least 280 bytes, which in some operating systems has exceeded 1300 bytes. The SYN-RECEIVED state of TCP is used to indicate that the connection is only half open, and the legality of the request is still questioned. An important aspect worth noting here is that the size of TCB allocation space depends on the SYN packets received-before the connection is fully established or the return reachability of the connection initiator is verified.王勃在《滕王阁序》中写道：雁阵惊寒，声断衡阳之浦。　　他抬起頭笑，他低下頭哭，身無分文 他卻千金難買。笨蛋爱上天才，会有结果吗？平凡女孩原湘琴（林允饰）喜欢上了天才少年江直树（王大陆饰），在她表白失败准备放弃之际，爸爸居然带着自己搬进了直树家里？！一个猛追，一个猛逃，热闹欢腾的纯真高中生活就此上演。朝夕相处中，直树渐渐被湘琴乐观的无畏精神吸引，他开始怀疑：湘琴究竟是人生偏差、还是自己的命中注定?那镯子也算我头上，一年内还。1. After shutting down, try to press the power key and the volume key for 8 seconds to enter at the same time for many times.《绝代双骄》的第二章到此结束，郑武这时候才有空喘上几口气。