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Re-visit hot events and try to dig out more complicated social feelings after the news cools down. The parties concerned are not simply praised or criticized, but are described in a more three-dimensional way, which finally shows the far-reaching and cruel influence of this social event.　　Tom的家庭也有了变化，父亲Steven被派往上海公干，母亲秀梅辞去了杂志编辑的工作，当特约记者，以方便自己在家照顾两个孩子和家婆，母兼父职的她面对教育孩子的问题，婆媳相处上，时而遇到问题颇为难。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./sleep(2) Problem Orientation:李新亮向记者冷哼一声，追向叶琳琳。男人笑声：那是。