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当前学科:专业综合第三章消化系统
题目:
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患者,男,57岁。胸痛,吞咽困难2周。既往反酸、烧心10余年,口服抑酸剂可缓解。为明确诊断首选的检查是()。
A . 胸部X线片
B . 胃镜
C . 腹部B超
D . 上消化道X线钡餐造影
E . 胸部CT
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