在局域网中，运行网络操作系统的节点是（ ）。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69451' and id < 4497674 and id<>'4497674' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69451' and id > 4497674 and id<>'4497674' order by id asc limit 5