误差最大的抽样方法是

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='10702' and id < 854188 and id<>'854188' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='10702' and id > 854188 and id<>'854188' order by id asc limit 5