补充必要的校本教材让教学更加符合（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30350' and id < 2452837 and id<>'2452837' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30350' and id > 2452837 and id<>'2452837' order by id asc limit 5