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But this is not over yet. Ethernet also requires CRC verification when transmitting data. The network card will CRC check the data packet before sending the data, attaching a 4-byte CRC value to the back of the packet header. At this time, the packet length is no longer 40 bytes, but 64 bytes, which is often referred to as SYN packet attack. The packet structure is as follows:坐堂大夫诊脉后，细问了起居饮食等，将前方略作修改后，递给田遥道：无大碍了。虎子睁大眼睛叫道：这不是……不是那个……他没说下去，却望向香荽。她是机场安检，安全检查是她的义务和责任，而这次她检查的人，却是她熟悉又多少次魂牵梦萦的脸……与曾经深爱之人再次重逢，有多少尽在不言中。6. The output is generally 300 kg, which is as high as 500-600 kg. The output in the second year will be slightly higher. Because of the original shrimp breeding, a pair of parent shrimps can breed hundreds of shrimps a year. In the second year, there is generally no need to replenish seedlings. If the first year is overworked, it is recommended to replenish part in March-April of the second year.很多人不得不感叹，天启和启明影视真是捡到宝了。我们，吃你的骡子，你，喝我们的酒。