是定义在R上的增函数，则下列结论一定正确的是（    ）

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='19610' and id < 1702639 and id<>'1702639' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='19610' and id > 1702639 and id<>'1702639' order by id asc limit 5