下列各选项中不属于教师外部培训的是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30201' and id < 2442621 and id<>'2442621' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30201' and id > 2442621 and id<>'2442621' order by id asc limit 5