中老年人呕血伴反复发作的、无明显规律的上腹痛并有厌食及消瘦者，应考虑A.胃癌 B.慢性胃炎 C.幽门梗阻 D.消化性溃疡

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问题中老年人呕血伴反复发作的、无明显规律的上腹痛并有厌食及消瘦者，应考虑

选项 A.胃癌 B.慢性胃炎 C.幽门梗阻 D.消化性溃疡

答案 A

解析

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