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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.高颜值高人气女演员苏矜北“娃娃亲”的订婚日如期而至，苏矜北临阵缺席，而她的未婚夫周时韫同样拒绝了婚约。谁知，苏矜北因意外车祸入院，邂逅了拥有精致五官的精英医生周时韫，并一见钟情。一段甜蜜波折、命中注定的爱情故事就此开启…男校风云讲述了生性善良的少年王小石下山游历，初入江湖，在机缘巧合下结识了白愁飞、温柔、苏梦枕等人，与他们建立了一生的友谊，并在风云际会的京城江湖中，体会到兄弟义气、红尘缠绵，并在这一过程中由懵懂少年逐渐成长为独当一面的“英雄”的故事。Https://medium.com/red-team/dde-payloads-16629f4a2fcd郑家日子虽然清贫，却也能支持，且黄瓜和黄豆去年都中了秀才，最主要的是。