生物膜对保证细胞生命活动正常进行具有重要的作用。下列有关叙述错误的是

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='21269' and id < 1847912 and id<>'1847912' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='21269' and id > 1847912 and id<>'1847912' order by id asc limit 5