SPOOLing系统提高了（）的利用率。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30195' and id < 2447104 and id<>'2447104' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30195' and id > 2447104 and id<>'2447104' order by id asc limit 5