METHODS: Keloids and normal skins(negative controls) were obtained from 6 patients and 6 normal people who operated in the Department of Plastic Surgery, Peking University Third Hospital.
方法：瘢痕疙瘩和正常皮肤（作为阴性对照）均来自北京大学第三医院成形科手术患者各6例。
Meanwhile we collaborate with Peking University School of Stomatology to study the regulating mechanism of normal and transferred submandibular gland in rabbit.
同时，本实验室还与北京大学口腔医学院进行合作，开展家兔正常和移植颌下腺分泌调控机制的研究。
Methods: A total of 78 autistic children from the clinic of Institute of Mental Health, Peking University and 120 normal controls aged 3-6 years old from general kindergartens were tested with C-PEP.
方法 ：研究对象患儿组来自北京大学精神卫生研究所儿科门诊孤独症儿童 78人 ，正常对照组取自一般幼儿园 36岁儿童 12 0名。
Now i'm studying in a private university in peking, in fact it's not like a normal university , just like a training center.
我现在在北京一所名办大学读大三，其实也不算大学，也就是个自考培训基地！
I also taught conversational English to students at the Beijing Normal College and to teachers at Peking University who were preparing for post-graduate studies overseas.
在北大期间，我曾给一批准备出国深造的北大教师上英文课，同时也在北京师范学院教英语口语。
I also taught conversational English to students at the Beijing Normal College and to teachers at Peking University who were preparing for post-graduate studies overseas.
在北大期间，我曾给一批准备出国深造的北大教师上英文课，同时也在北京师范学院教英语口语。
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