对如下AOV网进行拓扑排序，不可能得到（）。 

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30195' and id < 2447048 and id<>'2447048' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30195' and id > 2447048 and id<>'2447048' order by id asc limit 5