知识应用的过程一般分为（ ）环节。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30862' and id < 2485048 and id<>'2485048' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30862' and id > 2485048 and id<>'2485048' order by id asc limit 5