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上消化道出血时对病因诊断最有帮助的检查方法是()

单选题
2021-12-28 04:03
A、选择性腹腔动脉造影
B、内窥镜检查
C、X线钡餐检查
D、胃黏膜活检
E、核素检查
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正确答案
B

试题解析

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