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The day after the experience, Mary got up and went to buy two clothes. For a long time after her illness, her wardrobe was all "black". She only wore black clothes, black trousers and black shoes, but that day in the shopping mall, she chose herself two skirts, one pure white and one color.So without these two characteristics. The final damage will be 300 points.小葱觉得，再问也问不出什么了，便吩咐人安排他们在王府住下，好生照看。1. High cost of obtaining customers;Console.WriteLine (sender);Bad reviews, the update is too slow, and it broke before entering the state.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