人们经常借助于外在的具体形式，如画图表、路线图等表征问题。这是（

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SQL Error: select id,body,options from ***_enewstiku where sourceid='23640' and id < 2056567 and id<>'2056567' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='23640' and id > 2056567 and id<>'2056567' order by id asc limit 5