为了获得某一具体领域的新知识而进行的创造性研究活动称为

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SQL Error: select id,body,options from ***_enewstiku where sourceid='28611' and id < 2336074 and id<>'2336074' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='28611' and id > 2336074 and id<>'2336074' order by id asc limit 5