对于多基牙圆锥型套筒冠义齿一般选择_______颗基牙作为支持固位型基牙。
参考答案:3~4
The underlined parts in the word “diary” are pronounced as ________.
A.[ ai ә ]
B.[ә ai ]
C.[ i ә ]
D.[ i ɔ ]
氧化安定性