1. How do you do? 2. How are you? 3. How old are you? 4. What's your name? 5. Good morning. 6. Hello! 7. Nice to meet you. 8. Goodbye! 9. How old is Ann?
A. She's eight. B. Morning. C. Me, too. D. How do you do? E. I'm OK, thanks. F. Nine. G. Hello! H. Johnson. I. Bye!
，
缺失，余留牙正常，设计可摘局部义齿修复，
和
设计RPI卡环组