关于牙本质的形成，正确的是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32275' and id < 2568873 and id<>'2568873' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32275' and id > 2568873 and id<>'2568873' order by id asc limit 5