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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:Asynchronous non-blocking I/0解放前夕，侦察连长石岩独自一人潜入江城，目标是当时驻守江城的国民党部队林师长家，林师长已经决定起义，却被保密局安插在他身边的特务要挟。与此同时，特务头子侯老大正赶往集结地点，他们隐藏了一批枪支弹药准备进行武装潜伏。李虎是这批武装特务中的一员，而他真正的身份却是我地下党的工作人员。他们的武装行动被石岩及时发现，侯老大被捕，江城顺利解放，李虎也与石岩相识。就这么地，小娃儿因为脑子简单，无条件信任狗。等养好了，再教我用剑。自从身份被小葱知道后，就一直跟在板栗身边。该剧以三对母女为中心，讲述了与在她们身边发生的有关爱情、婚姻的故事，反应了婚姻、单身、再婚等在韩国社会的现状。http://www.2dy.cc/bf/13093/