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Later, an optimized form evolved, namely content-based e-commerce. Instead of selling goods directly, the stage of content consumption is increased before purchase, and the effect is consumption decision. In other words, by planning the content that users may be interested in, sufficient purchase reasons are provided for users to place orders, thus improving product stickiness, re-purchase or transformation.Some plants are very picky when choosing pollinators. The flowers of European Trollius are like a real safe deposit box, and only six kinds of insects know the code to open the safe deposit box. These lucky people all come from the genus Brevicorn. Only they know how to get into the sepals of European Trollius and find the center of the flower. However, no matter how hard other insects try, they can only fail with disappointment. The short-horned flower fly, which has gone to great pains to pollinate European Trollius, will naturally receive considerable "remuneration". Female short-horned flower flies lay eggs on the carpels of flowers. When the larvae are hatched, they will eat the seeds of flowers and grow up. This symbiotic relationship also has certain risks for European Trollius. The more short-horned flower flies, the greater the chance of pollination, but at the same time, the more insects parasitic on flowers. The cooperative relationship between the two was formed millions of years ago and continues to this day. It is a model of relative balance and harmonious symbiosis in nature.ClearIf you don't think the second plane is slow, you can choose it (use it for the first time). After you choose the plane, you can choose the take-off place (it can be the airport, desert area, or even the sea! Those with game consoles can be plugged into the computer for easy operation. Click Start Flight to start and complete.1945年夏天，猖狂一时的日本侵略军已成了秋后的蚂蚱，杨晓冬是地下党派到古城的新领导人，但进入古城后才知道古城地下党因汉奸特务和叛徒的出卖而遭受重创，为清查叛徒，杨晓冬刻意在古城地下党员、自己的初恋情人银环面前隐瞒身份，直到亲赴高府，查出是进步人士高鹤年在策反时的一时不慎，方才表露了身份。而杨晓东为了促成治安军起义，只身前往伪团长关敬陶家中，加以劝说。在与日军多田周旋中，武工队梁队长和韩燕来只身抢回关键的数据资料，击毙吴赞东，因叛徒的出卖，金环与杨母不幸牺牲。在这场斗智斗勇的战斗中，关团长坚定了起义的决心。日本投降的消息传来，关团长带领治安军控制了省城，最终在杨晓冬的领导下，击毙了多田。古城新生的一天迎来了新中国太阳升起的时候。At this point, the event is encapsulated and ready.或者他根本就是说给香荽听的。