以下哪项不是小儿年龄阶段的划分依据

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SQL Error: select id,body,options from ***_enewstiku where sourceid='27908' and id < 2291664 and id<>'2291664' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='27908' and id > 2291664 and id<>'2291664' order by id asc limit 5