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【单选题】
男，50岁。胃大部切除术后3天出现阵发性腹痛，腹胀，无肛门排气，生命征平稳。最可能的原因是A.
吻合口炎
B.
腹腔内血肿形成
C.
肠系膜血管缺血性疾病
D.
肠扭转
E.
手术后肠蠕动功能失调
拍照语音搜题，微信中搜索"皮皮学"使用
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