计算机系统中的扫描仪可以 。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30253' and id < 2447401 and id<>'2447401' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30253' and id > 2447401 and id<>'2447401' order by id asc limit 5