门静脉癌栓的来源，正确的是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31785' and id < 2541189 and id<>'2541189' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31785' and id > 2541189 and id<>'2541189' order by id asc limit 5