题型：填空题 从Ⅱ栏中找出与I栏相对应的答语。I ( )1. Good afternoon. ( )2. What's this? ( )3. Who's your friend? ( )4. Sit down please. ( )5. Nice to meet you. ( )6. Goodbye! ( )7. Good evening. ( )8. How are you? ( )9. Spell“pen" ,please. ( )10. Sorry. II A. That's all right. B. Goodbye ! C. I'm fine ,thanks. D. Mike is my friend. E. P-E-N. F. Good aftemoon. G. Thank you. H. Good evening. I. It's an apple. J. Nice to meet you,too. 查看答案
题型：填空题 正畸施力只有牙槽骨的吸收，却没有或只有少量的牙骨质吸收的原因是（）A.颌骨可塑性强 B.牙周膜内环境的稳定性 C.牙槽骨修复能力强 D.牙骨质硬 E.牙根表面总是覆盖着一薄层尚未钙化的类牙骨质 查看答案