以任务为基础的变革主要是针对（ ）所进行的变革。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29593' and id < 2405597 and id<>'2405597' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29593' and id > 2405597 and id<>'2405597' order by id asc limit 5