【单选题】【消耗次数：1】
含牙囊肿与萌出囊肿的共同上皮来源为
①
牙板上皮剩余
②
Malassez上皮剩余
③
牙龈上皮
④
缩余釉上皮
⑤
Serres上皮剩余
参考答案：
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关于牙龈上皮，错误的是（）
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