精简与效能原则辱伟包括彐层意思，分别为(  ) (易错）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='28890' and id < 2353259 and id<>'2353259' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='28890' and id > 2353259 and id<>'2353259' order by id asc limit 5