每天咯血量为多少时属于大量咯血

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31860' and id < 2547036 and id<>'2547036' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31860' and id > 2547036 and id<>'2547036' order by id asc limit 5