进行常模参照测验时，需要确定常模。常模团体可以包括（

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31520' and id < 2525781 and id<>'2525781' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31520' and id > 2525781 and id<>'2525781' order by id asc limit 5