便血，血色鲜红，黏附于粪便表面，便纸上可见血迹，提示A．上消化道出血B．小肠出血C．食管出血D．结肠出血E．肛门或肛管疾病出血

作者: rantiku 人气: - 评论: 0

问题便血，血色鲜红，黏附于粪便表面，便纸上可见血迹，提示

选项 A．上消化道出血 B．小肠出血 C．食管出血 D．结肠出血 E．肛门或肛管疾病出血

答案 E

解析

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