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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.(3) MvM(2) Control the zombie host on one end to communicate with the host on the other side and send and receive a large amount of data, which will reach the other end through the attacked link.As one of Germany's troika, BMW has always been a representative of the pursuit of extreme control. The common saying "drive a BMW and ride a Mercedes" is still a creed respected by many people. For a long time, the 3 Series, as one of the models that best embody the essence of BMW, has been favored by consumers. BMW also dotes on the 3 Series, after all, it does not want this golden signboard to be destroyed in its own hands.To get back to the point, At this time, I saw Zhang Xiaobo's expression was in high spirits. He was obviously very proud and relieved of his hatred for beating up the "killer bee" with the flickering armor-piercing bullet. Associated with his slightly melancholy expression just now, it was obviously not this one that made him melancholy. I was not the kind of person who liked to expose people's scars, but for work reasons, I still had to ask:　　此剧为京剧、昆曲文武老生传统戏之一，全剧通唱曲牌，亦文亦武，在别母、中箭、殉城等场次中，有繁难的身段表演及曲牌演唱。川剧、湘剧、桂剧、秦腔、同州梆子、河北梆子均有此剧目，徽剧名《别母乱箭》。