题型:单项选择题 男,27岁,有癫痫病史,检查见牙龈增生覆盖牙冠1/2,袋深4~6mm,前牙有移位。最可能的诊断是()。A.糖尿病型牙周炎B.增生性牙龈炎C.牙龈纤维瘤病D.药物性牙龈增生E.维生索C缺乏症 查看答案
题型:选择题 During our stay in London, the guide book ___ a great help. We all had a wonderful time.A. behaved B conducted C. served D. proved 查看答案