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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.　　为了使中国彻底屈服，日本发动了惨绝人寰的南京大屠杀，刘长岭用自己的生命捍卫国土，同时用自己的生命来向马昕蓝表白。马昕蓝被感动了，然而她拒绝了刘长岭。在一次协同八路军作战中，刘长岭的飞机被击落，马昕蓝以为刘长岭牺牲了，十分难过。当她看到被八路军成功营救的刘长岭再次出现在她面前，她不禁失声痛哭。然而，在各自的立场上，面对共同的敌人他们是同壕的战友，却不可能成为爱人。此话一出，顿时惹得众人一阵哄笑，憨实的人总是惹人喜欢。当一个拥有爱情洁癖却又向往婚姻生活的求爱剩女遇上一个让每个女人都至爱至恨的滥情渣男，会有什麽样的结局？是求爱剩女放下对爱情、对婚姻的坚持，成为滥情渣男的爱情俘虏之一？还是求爱剩女能够终结滥情战胜渣男！成功的让滥情渣男漂白成为优质好男人？于是一场势均力敌僵持不下，不分输赢绝不收手的爱情战争就此展开……But a few days later, cows had to eat grass and people had to eat. The life of the poor was more difficult than before. The poor man thought, "Why don't you sell the cow, buy some sheep, kill one for emergency first, and the rest can give birth to lambs. When the lambs grow up, they can sell them and make more money."(1) Free Certificate (Unit's First Certificate): Open the latest version of Line Assistant and click "Online Extension" to complete the extension automatically.