成本-效果分析的英文缩写是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30725' and id < 2475418 and id<>'2475418' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30725' and id > 2475418 and id<>'2475418' order by id asc limit 5