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【单选题】
男性，42岁，因胰头癌行胰腺十二指肠切除术，术后第1天腹腔引流管中有少许血液流出，约50ml，第2天80ml，出现血压下降、烦躁不安、面色苍白等，急诊B超检查腹腔内有大量液体。该患者可能出现了什么问题（）A.
结扎线脱落
B.
血管结扎处缺血坏死
C.
止血不彻底或血管结扎欠妥
D.
局部感染后组织坏死
E.
内出血和休克
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皮皮学刷刷变学霸
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A.
P = a premise marker
B.
C = a conclusion marker
C.
A = an assuring term
D.
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E.
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F.
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G.
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H.
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