组织替代材料的作用是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29312' and id < 2385672 and id<>'2385672' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29312' and id > 2385672 and id<>'2385672' order by id asc limit 5