肛管直肠癌的好发部位:A.直肠下段B.直肠中段C.直肠上段D.直肠上段与乙状结肠的交界处E.肛管与直肠交界处

作者: rantiku 人气: - 评论: 0
问题 肛管直肠癌的好发部位:
选项 A.直肠下段 B.直肠中段 C.直肠上段 D.直肠上段与乙状结肠的交界处 E.肛管与直肠交界处
答案 D
解析

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