常见型巨结肠无神经节细胞区的部位为A．局限于直肠远端B．自肛门向上延展至乙状结肠远端C．自肛门向上延展至脾区D．自肛门向上延展至全部结肠E...

作者: rantiku 人气: - 评论: 0

问题常见型巨结肠无神经节细胞区的部位为

选项 A．局限于直肠远端 B．自肛门向上延展至乙状结肠远端 C．自肛门向上延展至脾区 D．自肛门向上延展至全部结肠 E．仅限于直肠末端

答案 B

解析

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