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【单选题】
引起急性胆囊炎最主要的病因是A.
胆囊管狭窄
B.
胆囊结石堵塞胆囊管
C.
胰液反流
D.
胆囊内蛔虫
E.
致病菌入侵
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A.
too loud
B.
didn’t clear
C.
not interested
D.
not care
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