( )是构成生物有机体(人体)结构的功能的基本单位。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31196' and id < 2504863 and id<>'2504863' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31196' and id > 2504863 and id<>'2504863' order by id asc limit 5