患者，男，55岁。反复上腹部疼痛，纳差，易饱，腹胀，近期体重下降。鉴别胃癌和消化性溃疡最好的方法是

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='31118' and id < 2500749 and id<>'2500749' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31118' and id > 2500749 and id<>'2500749' order by id asc limit 5