左心房增大最早出现的X线征象是( )A.左心缘第三弓突出B.右心缘双边阴影C.右心缘双房影D.右前斜位食管吞钡左心房压迹增加E.左前斜位左...

作者: rantiku 人气: - 评论: 0
问题 左心房增大最早出现的X线征象是( )
选项 A.左心缘第三弓突出 B.右心缘双边阴影 C.右心缘双房影 D.右前斜位食管吞钡左心房压迹增加 E.左前斜位左主支气管变窄抬高
答案 D
解析

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