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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:谢赵大人。在华天电器商城小家电部当主任的廖扬一直梦想着能够拥有一辆车，他终于说服了媛媛先买车后买房，租房结婚对于年轻人来说可能无所谓，但是在两家老人那里却炸开了锅。It should be noted that I am not proficient in DDOS and never thought I would be the target of attack. After the attack, many unknown friends provided all kinds of help and suggestions, which made me learn a lot. Here are some of the solutions that are most helpful to me.Subjectively Down (SDOWN) refers to the offline judgment made by a single Sentinel instance to the server.The plot I remember was said when I hit the master of the object room, that is, when I grabbed the last headband.