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　　天一和女友漫玲加上常刚三人驱车来到省城金湾酒店，让天一惊讶的是，这家五星级酒店的销售总监竟然是高中同 学胡雪松。而胡雪松自从高中毕业后就和大家失去了联系。Human's classification consciousness and practice on vegetation, animals and other organisms have existed since ancient times. They existed in ancient China and ancient Greece, and developed into a science-taxonomy. However, the early classification was mainly based on morphology, such as the shape of roots, stems and leaves. Taxonomy based on morphology is the oldest discipline in biology, and the earliest phyla, classes, orders, families, genera and species basically came from here. Taxonomy in the general sense refers to a specialized discipline that identifies, identifies, describes, names and classifies organisms. The task and purpose of taxonomy can be divided into two parts:11. Change the competition for all employees to the competition for vacancies. It is advocated that as long as employees are capable and confident, the Company will provide employees with a platform to show themselves. For job vacancies, the Company will implement a targeted competition mechanism, which will be organized and led by the Administrative Personnel Department. The posts, applications, competition speeches, result statistics, appointment notices, etc. will be issued fairly and impartially to ensure the scientific nature of talent selection.南宋淳二年(1242年)，四川安抚制置史兼重庆知府余始筑钓鱼城。1258年，蒙哥大汗挟西征欧亚非40余国的威势，分兵三路伐宋。蒙哥亲率的一路军马进犯四川，于次年2月兵临合川钓鱼城。蒙哥铁骑东征西讨，所向披靡，然而在钓鱼城主将王坚与副将张珏的顽强抗击下，却不能越雷池半步。7月，蒙哥被城上火炮击伤，后逝于温泉寺。钓鱼城保卫战长逾36年，写下了中外战争史上罕见的以弱胜强的战例，钓鱼城因此被欧洲人誉为“东方麦加城”、“上帝折鞭处”。