下列差异量数又被称为变异数的是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30773' and id < 2477759 and id<>'2477759' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30773' and id > 2477759 and id<>'2477759' order by id asc limit 5