学生集体特征首先要有（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32167' and id < 2564633 and id<>'2564633' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32167' and id > 2564633 and id<>'2564633' order by id asc limit 5