全冠试戴时出现翘动,可能的原因中不包括
A.邻接过紧
B.未完全就位
C.预备体轴壁聚合度大
D.全冠组织面有金属瘤
E.石膏代型磨损
参考答案:C
In the face of the big fire in October in California,many people in the fire-stricken areas moved out __________.
A.to escape burning
B.to escape being burned
C.escaping burned
D.escaping from burning
贯通伤是指
A.创伤后深部体腔与外界相通
B.开放性创伤
C.投射物击中人体,造成一个入口和一个出口
D.一般是指开放性颅脑损伤
E.可等同于穿透伤