上消化道出血患者出现黑便，提示每日出血量为

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31057' and id < 2497828 and id<>'2497828' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31057' and id > 2497828 and id<>'2497828' order by id asc limit 5