一个物体保持静止或匀速运动状态不变，这是因为 （     ）

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='17835' and id < 1505787 and id<>'1505787' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='17835' and id > 1505787 and id<>'1505787' order by id asc limit 5