个体对学习活动所要达到目标的主观估计是（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30603' and id < 2469244 and id<>'2469244' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30603' and id > 2469244 and id<>'2469244' order by id asc limit 5