教学活动的基层组织单位是 （ ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29324' and id < 2387042 and id<>'2387042' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29324' and id > 2387042 and id<>'2387042' order by id asc limit 5