下列设备中，（）既是输入设备又是输出设备。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69451' and id < 4497673 and id<>'4497673' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69451' and id > 4497673 and id<>'4497673' order by id asc limit 5