题目内容
引起上消化道大出血的溃疡一般位于
2022-03-16
A.十二指肠球部前壁或胃小弯
B.十二指肠球部后壁或胃小弯
C.十二指肠球部前壁或胃底
D.十二指肠球部后壁或胃底
E.十二指肠球部前壁或胃窦部
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