( )通常为一定历史时期内损失的平均值。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31440' and id < 2520590 and id<>'2520590' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31440' and id > 2520590 and id<>'2520590' order by id asc limit 5