复合树脂充填,不宜用氧化锌丁香油糊剂垫底是因为()
A.可致树脂性质改变
B.影响树脂聚合
C.影响树脂与牙粘接
D.抗压强度不足
E.使树脂色泽改变
参考答案:B
The examination will begin at 10:30. Those who come late ____ to the examination room.[ ]
A. have not been admitted
B. don't admit
C. will not be admitted
D. didn't admit
恶性高血压病人大多数以下列哪个器官的功能损害最为严重()
A.肾脏
B.肝脏
C.心脏
D.眼底
E.脑