( )是促使主体从事学习活动的直接作用。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30605' and id < 2469284 and id<>'2469284' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30605' and id > 2469284 and id<>'2469284' order by id asc limit 5