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The second classification principle of organisms is the lineage classification principle aiming at establishing evolutionary lineage. The classification method following this principle is called lineage classification. The representative of pedigree classification is "branch systematics". It advocates that the branches in evolution should be taken as the criteria for identifying and distinguishing classification units and the basis for determining the pedigree relationship of each classification unit. The so-called co-ancestral proximity (similar to a group of people being a grandfather) is used to measure the genetic relationship between different taxa and determine their position in the pedigree. The classification system finally established is an evolutionary pedigree reflecting the history of phylogeny, which is a deeper description of biological relationship. In other words, the basic principle of pedigree classification is that the classification system conforms to the evolutionary pedigree. Pedigree classification is only applicable to organisms and cannot be used for abiotic classification.恭喜恭喜。The main content of this program: In his life, Su Shi, the great literary giant, had three women he loved deeply. It is hard to say which one he loved most and preferred more. However, I have to say that there is one in his heart who will always occupy an important position and leave him a deep-rooted memory. This is Su Shi's wife, Wang Fu. Wang Fu was Su Shi's first wife. She witnessed Su Shi's vigorous youth. Her combination with Su Shi was also a happy marriage like a fairy couple. (Lecture Room 20190310 Poetry Love (Part II) Seven Years of Life and Death　　小时候失去父母，被姐姐抚养长大的女主角向打乱姐姐人生的女性复仇，惊险急速展开的痛快爱情悬疑剧。　　该剧集根据三部敬同名漫画改编，男主角藤沼悟拥有一种特殊能力，如果他出现的附近有人丧生，时间就会倒流到事故诱因发生的那一刻。悟必须找出它，并改变它，从而拯救被害者；否则时间就会不断循环倒流，直至找出原因。值得一提的是，该剧集主要在日本北海道拍摄，当地闻名的雪景和函馆山夜景在剧中都有展示。剧集将于12月15日Netflix上线。该剧为李炳宪导演首度执导的电视台播出的电视剧，也是继网剧《积极的体质》之后的又一尝试。据李炳宪导演介绍，“该剧讲述了三十多岁的女性朋友们的工作和恋爱琐碎日常”。Dependence Inversion Principle (DIP) means that abstraction should not depend on details, and details should depend on abstraction, which is the proposed "interface-oriented programming, not implementation-oriented programming". This can reduce the coupling between customers and specific implementations.