下列哪个部位出血可见柏油样便A．十二指肠球部B．回盲部C．结肠D．直肠E．肛门

作者: rantiku 人气: - 评论: 0

问题下列哪个部位出血可见柏油样便

选项 A．十二指肠球部 B．回盲部 C．结肠 D．直肠 E．肛门

答案 A

解析

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