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At this point, the dynamic block creation is completed. The following step is to place the created dynamic "block" into AutoCAD? In the tool palette of.Now, let's imagine why these "checkpoints" are called "chains" in iptables. As we know, The purpose of a firewall is to match "rules" for passing messages, Then execute the corresponding Action, So, when the message passes through these checkpoints, You must match the rules on this level, However, there may be more than one rule on this level, But there are many rules, When we put these rules in a chain, A "chain" has been formed. Therefore, we imagine each "checkpoint" as shown in the following figure. In this way, it is more appropriate to call them "chain". Each message passing through this "checkpoint" must match all the rules on this "chain". If there are qualified rules, the corresponding actions of the rules will be executed.待汉子们都被松了绑，又在鲁三和胖子等人的帮助下上药，小女孩亲自帮少年上药。剧中讲述罗伯特是一位讲原则不伤无辜的杀手，他已经对杀手生涯感到厌倦。就在此时，一位心狠手辣的年轻杀手贝米高忽然出现，引起了罗伯特的注意。贝米高企图通过杀死罗伯特而取得第一杀手的位置。为此，他抢去了罗伯特的合约，并且和罗伯特展开了殊死的较量。Public void update () {《栀子花开2015》讲述一群年轻人为实现一个年轻人的梦想而拼搏”的热血故事，一段围绕着一对老同学言蹊、许诺而展开的兜兜转转的青春爱情故事，嗡嗡……这时，吕馨的手机突然开始震动。