哪一年龄段乳牙未萌出可以称为出牙延迟

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SQL Error: select id,body,options from ***_enewstiku where sourceid='28506' and id < 2327593 and id<>'2327593' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='28506' and id > 2327593 and id<>'2327593' order by id asc limit 5