试题与答案

患者,男,30岁。肛门部有物反复脱出近10年。检查:脱出物呈圆锥状,长约7cm,上可

题型:单项选择题

题目:

患者,男,30岁。肛门部有物反复脱出近10年。检查:脱出物呈圆锥状,长约7cm,上可见沟纹。其诊断是()。

A.混合痔

B.内痔三期

C.一度直肠脱垂

D.二度直肠脱垂

E.三度直肠脱垂

答案:

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参考答案:D解析: USB是一个外部总线标准,用于规范计算机与外部设备的连接和通信。USB接口支持设备的即插即用和热插拔功能。

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题型:填空题

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