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2. Do a good job of understanding before raising. First of all, look for some information on the Internet, study hard, and understand the basic habits of crayfish. Don't just see a few shrimps and listen to others saying that it likes to eat dead chickens and rotten intestines, so it blindly starts.　　送别的机场，可欣尽量平静的和范裔风告别，两个人相互交换项链，也许这便是将两个人注定分离的开始。RST means reset, which is used to close the connection abnormally. It is indispensable in TCP design. When sending RST packets to close the connection, you don't have to wait for all the packets in the buffer to be sent out (unlike the FIN packets above), and you directly send RST packets to discard the packets in the buffer. After receiving the RST packet, the receiving end does not need to send an ACK packet to confirm it.The professional mode can be opened by drawing the pro button at the bottom of the camera interfaceInternational News Study: