案例：女性，33岁。因呕血200ml，黑便3次伴晕厥而被抬送来诊。查体：贫血貌，腹平软，剑下轻压痛，肝脾肋下未及，移动性浊音阴性。为了明确诊断，首选的检查方法为

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SQL Error: select id,body,options from ***_enewstiku where sourceid='26464' and id < 2210106 and id<>'2210106' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='26464' and id > 2210106 and id<>'2210106' order by id asc limit 5