根据“牙体三等分”概念，上颌中切牙近中切角可表示为

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32227' and id < 2567322 and id<>'2567322' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32227' and id > 2567322 and id<>'2567322' order by id asc limit 5