缺失,余留牙正常。可摘局部义齿基牙应选择()。
A.A
B.B
C.C
D.D
E.E
参考答案:D
解析:
基牙为。应选择临近缺隙的后牙或尖牙做基牙,达到面式固位。
美国总统肯尼迪在就职演说中说:“不要问美国给你们什么,要问你们为美国做了什么。”这句关于责任的经典话语激励了无数美国青年。对这句话理解有误的是( )
A.要对民族和国家负责
B.要树立“天下兴亡,匹夫有责”的观念
C.美国青年与中国青年不同
D.要肩负起中 * * 伟大复兴的重任
根据句意及首字母(汉语)的提示,补全单词。
1. Our teacher always d_ with some students' ideas.
2. Smoking is h____ to your health. You'd better give it up.
3. Her dog's sudden d____ made the girl sad for a long time.
4. ____ (喂养)the animals on the farm is very interesting.
5. We can't find any____ (表达方式)to show our thanks to our teachers.