问题
填空题
用所给单词的适当形式填空。
①Those are my _____ (key).
②— What's ____(these) in English?
— I don't know
③How many_____ (photo) are there in your room?
④— What are those?
— They are _____ (they) hooks.
⑤ _____ (this) are my pencils.
答案
①keys ②this ③photos ④their ⑤These
缺失，
Ⅰ度松动，临床冠长，楔状缺损穿髓，叩（±），X线片显示：
缺失，
下垂4mmⅡ度松动，牙槽骨吸收达根长2/3，修复设计是（）
，
局部义齿修复
