乙状窦血栓性静脉炎
参考答案：
乙状窦血栓性静脉炎是伴有血栓形成的乙状窦静脉炎，为常见的耳源性颅内并发症，右侧较多见。
杜甫以诗写史，故杜诗被称为（）。
You are a salesman in a pharmacy company. Write a letter to Mr. Wang, one of your customers, to introduce a new medicine to him.
Do not sign your own name at the end of the letter. Use "Li Ming" instead.
Do not write the address.
