问题
单项选择题
急性梗阻性化脓性胆管炎最常见的病因是（）。
A.胆总管结石
B.肿大的胆囊压迫胆总管
C.胆总管狭窄
D.肝脓肿并出血，阻塞胆管
E.胆总管肿瘤并梗阻
答案
参考答案：A
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急性梗阻性化脓性胆管炎最常见的病因是（）。
A.胆总管结石
B.肿大的胆囊压迫胆总管
C.胆总管狭窄
D.肝脓肿并出血，阻塞胆管
E.胆总管肿瘤并梗阻
参考答案：A
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| Cambridge (剑桥) is one of the top universities in the world, and it's a city as well. To the surprise of some visitors, there are no walls around the university. Classroom buildings, libraries and offices can be seen all over the city. Most of the members of the city are the students and teachers of thirty-one colleges (学院). It got its name "Cambridge" from the river called Cam and a bridge built over it. Before the university was founded 800 years ago, Cambridge was a developing town. It developed faster because of the opening of the railway and became a city in 1951. Now it has a population of more than one million. Many young students hope for the chance to study at Cambridge. Perhaps you'll be a member of Cambridge one day.
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