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BIM also has the function of quantity statistics to determine the amount of building materials used for preliminary cost analysis of construction units. The traditional method is that the construction management personnel fully understand the design intention and then convey it to the construction workers. Relatively professional terms and techniques are difficult for the workers to fully understand.First, Cat5 is referred to as Category 5 and Cat6 is referred to as Category 6. The difference between the two lies in the different spacing of twisted pairs. CAT5 has relatively large spacing, CAT6 has relatively tight spacing and the transmission rate is much higher than CAT5E.像他们这样的身份太显眼了，随便说句什么话，被人听了传了出去，容易生事。说完匆匆地跑到一丛灌木跟前，飞快地解开裤子，一边解决人生大事，一边警惕地四处张望，生恐周围还有其他人。When a client accesses a server's web service, The client sends a message to the network card, The tcp/ip stack is part of the kernel, Therefore, the client information is transferred to the web service in user space through the kernel's TCP protocol, At this time, the destination destination of the client message is on the socket (IP: Port) that the web service is listening for. When a web service needs to respond to a client request, The destination destination of the response message sent by the web service is the client, At this time, The IP and port that the web service listens on becomes the origin instead, As we said, Netfilter is the real firewall, It is part of the kernel, Therefore, if we want the firewall to achieve the goal of "fire prevention", You need to set up checkpoints in the kernel. All incoming and outgoing messages have to pass through these checkpoints. After checking, those that meet the release conditions can be released, while those that meet the blocking conditions need to be blocked. As a result, input checkpoints and output checkpoints appear. These checkpoints are not called "checkpoints" but "chains" in iptables.命运的安排，导致他们都搬进了一个叫做With Love的学生公寓，这个公寓的管理员叫做Pussy（原名叫Jim姐），Pussy是个超级搞笑的逗逼，而她还有两个小跟班，分别是Kim和Srimala。从此之后，一箩筐搞笑、麻烦、温暖以及难忘的事情就发生了。About a week (mail speed is uncontrollable, please go to the scene for urgent use)