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秦昭就皱眉思想起来。　　爱德华到洛杉矶出差。一天夜里，他向他的朋友——律师菲利普借了一辆高级轿车想出去解闷，却不知不觉将车开到了红灯区。在一条林荫道上，迷失方向的爱德华只好向一位年轻漂亮的妓女维维安问路。维维安的美丽活泼吸引了爱德华。在付出一笔小费之后，维维安答应送他回旅馆。当回到套间里时，爱德华已经不想让维维安离开了。于是他又继续“雇”了她一夜。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.周菡叫道：拜见拜见，你以为人家好想见我么？呜呜……他都不知世上有没有我这个人呢。大屏幕上，浮现出一幅浩瀚山河的画面。