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　　不过，他这次返乡的前提是：谢绝媒体打扰。到达布宜诺斯艾利斯之后，他坐着一辆破车，经历好一番波折才最终来到小镇，收到了市长的热情欢迎。Thromboembolic diseases are currently one of the causes that endanger human health and lead to the highest mortality rate, such as myocardial infarction, cerebral thrombosis, deep vein thrombosis, cerebral embolism, pulmonary embolism, etc. In addition, thrombosis is an important pathological process involved in the pathogenesis of many diseases. 1. Anticoagulant therapy (1) Heparin: Heparin is a commonly used anticoagulant and is a highly sulfated glucosaminoglycan. Heparin is widely found in mammalian tissues, and mast cells are the main producing sites. The main sources of medicinal heparin are bovine lung and pig intestinal mucosa. Heparin used clinically is called unfraction heparin (UFH) because it is a mixture of components with different relative molecular weights. The relative molecular weight is between 33,000 and 30,000, which is also called standard heparin (SH). The drug name is heparin sodium. (2) Low molecular weight heparin: crude heparin is cracked into some fraction with relative molecular mass of 1000 ~ 12000 by chemical or enzymatic hydrolysis methods, and then purified. There are at least 10 kinds of low molecular weight heparin prepared by different manufacturers and different methods.Prototype pattern: Create new objects by copying prototypes.A few strands of the rubbed hair hung down and looked very embarrassed. Hit his hand off his head and looked at his uncontrollable trembling hand. He felt a little scared and could no longer control it. He wanted to open a portal to send himself to New York immediately. He just raised his hand but was stopped by Wang. Wang took his hand and shook his head at him. His reason was still there. He just watched quietly here and didn't do anything out of line.　　天生之子（郑伊健）自幼居于山中。一日，义救女子林朝英（梁佩玲），朝英却误会为其轻薄，欲杀之泄愤。幸金国世子完颜峰（罗嘉良）相救，两人互相仰慕，义为结拜，峰更代他取名重阳。他捡了两只树枝洗干净当筷子。听得众人目瞪口呆，直觉要出大事了：谁家闺女被人这样骂，那还不找人拼命？屋里。