可摘局部义齿修复适用于()
A.双侧游离端缺失
B.单侧游离端缺失
C.缺隙牙槽嵴低平
D.基牙三度松动
E.拔牙创未愈合
参考答案:A, B, C, E
通过对技术的研究、开发及创新实施强有力的支援,以实现产业在不断更新的技术支持下,取得持续发展这一战略目标的政策是( )。
A.产业经济政策
B.产业技术政策
C.产业政策
D.产业结构政策
用所给词的正确形式填空。
1. Chicago is _____ (big) than Paris.
2. This book is_____ (good) than that one.
3. The weather this winter is _____ (bad) than the weather last winter.
4. He is a little _____ (young) than me.
5. Mr Smith is much _____ (old) than his wife.