某消化性溃疡患者经常胃出血，并发现黑便。出血量约为（ )

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SQL Error: select id,body,options from ***_enewstiku where sourceid='28308' and id < 2316657 and id<>'2316657' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='28308' and id > 2316657 and id<>'2316657' order by id asc limit 5