肝的基本结构单位是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30850' and id < 2484624 and id<>'2484624' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30850' and id > 2484624 and id<>'2484624' order by id asc limit 5