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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.Back to Shidao Pier　　伊莲娜的儿子伊万在六岁那年不小心在法国的一个海滩走丢了。十年后，伊莲娜在这片海滩上工作生活，渐渐走出丧子的阴霾。一天，伊莲娜无意中遇到了一个名叫让的法国少年，长相与伊万极其相似，令伊莲娜深受震撼。随着两人关系的逐渐加深，危机也慢慢出现……本片改编自2017年同名短片，饰演伊莲娜的西班牙演员玛尔塔·涅托凭借本片荣获第76届威尼斯电影节地平线单元最佳女演员奖。1951年，贺龙同志担任中央体委主任。为此，他励精图治。他来到北京，将卢汉、荣高棠等人请到家中，共商发展体育运动大计。他亲自出面为国家体委要来办公和训练场地，又劝说老部下张之槐脱下军装担任体委训练司副司长，并亲自登门请解放前曾担任过中华全国体育协进会总干事的董守义为大家讲课。贺龙率代表团赴苏联学习“老大哥”的经验，回国后制定了《劳动卫国体育制度》。一场群众性的体育达标运动在全国开展起来。自然灾害时期，贺龙成了一个后勤部长，到处打电话，调物资，要肉，要蛋，并派跟随自己多年的老班长开办农场生产为运动员增加营养的农副产品。在贺龙亲自关怀下，中国第一所体育大学成立了。乒坛名将傅其芳被请回到国内担任教练，很快使中国的乒乓球迈进了世界强国的行列，取得了26届世锦赛的辉煌。国家登山队组建后，一举登上了攀登珠穆朗玛峰。首届全运会胜利召开，将全民健身运动推向了一个新阶段。看到在国际赛事中五星红旗一次次地升起，贺龙同志开怀地笑了……我随便看看。① ProductionBecause of the fear of death, people will have a bipolar tendency towards it. Either don't talk about it or be too romantic. But death is the ultimate powerlessness.