学习策略是学习者制订的学习计划，由（）构成。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='23636' and id < 2056314 and id<>'2056314' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='23636' and id > 2056314 and id<>'2056314' order by id asc limit 5