识记材料的数量越大，识记后遗忘的越少。 （ ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31574' and id < 2529162 and id<>'2529162' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31574' and id > 2529162 and id<>'2529162' order by id asc limit 5