题型:判断题 _______________, the players began the game.A.Having take our seatsB.Taking our seatsC.Being taken the seatsD.After we had taken our seats 查看答案
题型:判断题 患者男,因上前牙牙龈反复出现瘘管,X线片显示根管钙化,经过多次正规治疗后无效,拟行根尖手术。手术切口设计中错误的是A.牙周组织的健康程度影响愈合B.切口下方必须有骨组织支持C.瓣膜蒂可小于游离端D.切口不应通过骨隆突E.切口边缘不能被撕裂 查看答案