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王平家庭贫寒，在她5岁时，母亲因为弄丢了20块钱受到父亲严厉责骂，跳楼自杀。小小年纪的她对父亲重组的家庭毫无安全感，继母也没能给她家的温暖感觉。王平发奋读书，却没有机会考大学，不能早一天离开那个寒冷的家。于是草草找了位憨厚老实的货车司机结婚，但几年后，货车司机也因为钱背叛了她。从此后，王平对家对感情完全失望，把所有精力都放在了工作学习上。高镇长跟王平的开始，缘于镇政府要开设对外招待所，而副所长的职位一直没有定下合适人选。王平主动示好高镇长，做起了高镇长情人，同时也用身体换来了招待所副所长的职务。Saturation展硕邻居文颖朗为爱犬之人，对展硕待犬只的态度极之不满，因此当爱犬东东失踪时，颖朗认定乃展硕所为，二人关系势成水火。时一只自来狗豆豆突然出现，弥补了颖朗的伤痕。不料，Rocky竟与豆豆共堕爱河，但见主人互不瞅睬，两只精灵狗儿顿觉头痛...役夫无奈，只好再去敲门传话。Top, top, top!TCP works in the Transport layer, IP in the Network layer, and ARP in the DataLink layer; The data on the second layer is called Frame, the data on the third layer is called Packet, and the data on the fourth layer is called Segment. At the same time, we need to simply know that when data is sent from the application layer, header information will be added to each layer, encapsulated, and then sent to the data receiving end. This basic process you need to know, that is, every data will go through the process of data encapsulation and unencapsulation.