问题
单项选择题
上消化道内镜检查的禁忌证是（）。
A.消化性溃疡急性出血
B.消化性溃疡并发急性穿孔
C.消化性溃疡并发幽门梗阻
D.胃溃疡疑有癌变
E.消化性溃疡药物治疗后疗效观察
答案
参考答案：B
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上消化道内镜检查的禁忌证是（）。
A.消化性溃疡急性出血
B.消化性溃疡并发急性穿孔
C.消化性溃疡并发幽门梗阻
D.胃溃疡疑有癌变
E.消化性溃疡药物治疗后疗效观察
参考答案：B
根据短文选用方框中的单词，并注意其形式，一空一词，一词一次。
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