外部分组是按照学生的（ ）来编班。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='26615' and id < 2216803 and id<>'2216803' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='26615' and id > 2216803 and id<>'2216803' order by id asc limit 5