患者，男，20岁。突发上腹剧痛3小时，怀疑消化道穿孔，无休克表现，为进一步明确诊断，首选的检査方法是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31203' and id < 2505319 and id<>'2505319' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31203' and id > 2505319 and id<>'2505319' order by id asc limit 5