急性渗出性炎症反应出现在牙周炎发展过程的()
A.病损确立期
B.早期病变
C.始发期
D.进展期
E.修复期
参考答案:C
all her spare time to her study during the three years, Tedy finally took the first place in her school in the College Entrance Examination and received the admission notice from her dream university.
A.Devoted
B.Having devoted
C.To be devoted
D.She had devoted
接入网最初的原型是用户环路,仅仅是一种专用设施,附属于电话网甚至附属于特定控交换机。