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Editor's comment: The BMW 3 Series has a total of six generations of models since its development. The good reputation and mature design of the previous generation of models make the new BMW 3 Series not need to innovate the overall chassis structure, which is also the accumulated result of the BMW 3 Series over the past 40 years. The overall structure of the new BMW 3-Series chassis makes it worthy of the title of the same control benchmark. Compared with this, what makes people feel more valuable is the emphasis on chassis details of the new BMW 3-Series, and it is this spirit of pursuing perfection that enables the BMW brand to have a strong foothold for a hundred years.LINUX: Linux uses the variable tcp_max_syn_backlog to define the maximum half number of connections that the backlog queue can hold. In Redhat 7.3, the value of this variable defaults to 256, which is far from enough. A low-intensity SYN attack can fill up the half-connection queue. We can modify the value of this variable with the following command:Early July　　为了赢得美人芳心，兄弟阋墙在所难免，两人各自使出还来？毛海峰眼睛一瞪，光头。毒特警赵刚所领导的特别行动小组是一支直属于公安部禁毒局的精英力量。在一次突袭行动中，赵刚意外的发现了十二吨被隐藏的冰毒，经检验，此种冰毒是在国内由人工化合而成。这一发现，暴露了我国毒情的一大隐患，如不迅速破获将影响我国的国际声誉。特别行动小组的赵刚等人临危受命，誓将制毒者极其相关的毒枭一网打尽，化解我国禁毒史上空前的毒品危机。一场连环的禁毒战役就此打响。特别行动小组往来于云南、广东、缅甸、泰国、香港等地，与各国毒枭开展一次次的勇气和智力的较量。在公安部的全面指挥下，在各省各警种的大力配合下，在特别行动小组不遗余力的强行突破、极限追捕下，四大毒枭相继落网，毒品的制造和贩卖得到了有效的控制，“国家形象”得到了坚决的捍卫和维护。