相关系数r的取值范围为

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30773' and id < 2477779 and id<>'2477779' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30773' and id > 2477779 and id<>'2477779' order by id asc limit 5