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In other words, users in BIO are most concerned about "I want to read", users in NIO are most concerned about "I can read", and users in AIO model need to pay more attention to "finished reading".约翰•波特（John Porter）回来了，而这一次他处在一个前所未有的困境中。The number is small and unusual. In front of the tens of billions of express deliveries each year, the more than 10 million green express packages put in are really a drop in the bucket. However, for express delivery companies, the cost of large-scale promotion is beyond their affordability. Niu Zhijing, head of Cainiao Green Action, said: "Can consumers be willing to bear a little of these costs, can our businesses be willing to bear a little, and can our government encourage some?" Yang Daqing, a special researcher of the China Logistics Association, said: "If we achieve a unified standard through the whole chain, we will reduce the cost pressure brought by a single enterprise in a single link."杨长帆眼中，父母好像很淡定，看来黄胖子都帮我交代过了，先让他们反应一下吧，我不急着说话。By default, the changes we make to the "firewall" are "temporary". In other words, when the iptables service is restarted or the server is restarted, the rules we normally add or the changes we make to the rules will disappear. In order to prevent this from happening, we need to "save" the rules.? The direction of industrial Internet is to build an ecosystem of intelligent manufacturing, which is the subversion of software, network, big data and other service modes in the industrial field. Industrial Internet is to realize the interconnection of all machines, not just the machinery and equipment of manufacturing factories, and finally realize the integration of machines and machines, and the integration of people and machines.