内痔好发部位主要分布有：A．肛门静脉B．直肠上静脉丛C．直肠下静脉丛D．髂内静脉E．以上均不对

作者: rantiku 人气: - 评论: 0

问题内痔好发部位主要分布有：

选项 A．肛门静脉 B．直肠上静脉丛 C．直肠下静脉丛 D．髂内静脉 E．以上均不对

答案 B

解析

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