MAC地址通常存储在计算机的（ ）。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69451' and id < 4497678 and id<>'4497678' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69451' and id > 4497678 and id<>'4497678' order by id asc limit 5