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Dark spots and purple patches may appear on the skin, especially on the skin of hands and feet from the distal end. These spots may spread slowly along the arms and legs. Lips and nail bed blue or purple deepened.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:　　在接下来的日子里，这几位新新人类恋爱吵架、插科打诨，度过了一个个喧嚣又难忘的日子。爱情的萌芽也在他们的心中蓬勃生长……Contrary to this, In many primary schools, in interviews for first-year students or parents' notices before the start of school, All of them have put forward very clear requirements on the number of English words, the number of ancient Chinese recitations, and the ability to calculate mathematics. This makes parents very anxious. If the children do not carry out relevant learning and accumulation in advance, they will probably not be able to adapt to the formal learning environment and gradually widen the gap with their peers if they enter primary school directly.《蓝色故事》是一个悲剧故事，讲述了蒂米和马可之间的友谊，这两个男孩来自对立的邮政编码。蒂米是一个害羞、聪明、天真、胆小的来自德普福德的小男孩，他在派克汉姆上学，在那里他和马可建立了友谊，马可是一个来自当地的有魅力的街头小伙。虽然从交战的邮政编码，两人很快形成了牢固的友谊，直到它被测试，他们最终在敌对双方的街头战争。《蓝色故事》描述了说唱歌手的个人经历和童年生活。这集，神勇干探陈家驹（成龙 饰）将远赴大陆，化身囚犯打入国际军火毒品走私集团的内部。在大陆美女公安杨建华（杨紫琼 饰）的帮助下，家驹顺利接近了正在服刑的集团成员豹强（元华 饰）。豹强视家驹为心腹，和他策划越狱行动。为了放长线，家驹爽快应承了。Nikita和Michael的关系一开始相对稳定，但随后发生了一些可怕的事情，令Michael面临巨大的考验——他和所有人的关系都变得紧张，这其中当然包括Nikita。而其他的人也有了各自的想法，第三季后半段组织将遭受重大考验