Ⅰ ( )1. May Day ( )2. Children’s Day ( )3. New Year’s Day ( )4. Christmas Day ( )5. National (国庆) Day ( )6. Teachers’ Day ( )7. Mother’s Day ( )8. Father’s Day ( )9. Women’s Day ( )10. Army’s Day
Ⅱ A. June 1st B. May 1st C. December 25th D. October 1st E. September 10th F. January 1st G. the second Sunday in May H. the third Sunday in June I. August 1st J. March 8th
缺失，行固定义齿修复．46为基牙。1年后基牙．有跳痛。其主要原因为（）