患者,男性,65岁,缺失,磨耗较重,后牙工作尖及非工作尖磨耗均较重。临床修复时,人工牙的选择应为()
A.有尖牙
B.无尖牙
C.牙尖斜度大
D.牙尖斜度小
E.线性
参考答案:D
阅读下面的短文,根据上下文意思及所给首字母写出所缺单词。
Basketball is a very popular g 1 in America. People and children all 1 2 it. Most people can play it.
A basketball is a r 3 and big ball. It's bigger and heavier than a f 4 . It's the biggest of all the balls.
There are f 5 players in each team. Basketball is quite popular in China, too. Children often t 6 a
basketball to school and play it after school. In China, some girls can play basketball b 7 than boys.
1._____ 2._____ 3._____ 4._____ 5._____ 6._____ 7._____
空液化气体罐车运输时,不需派押运人。()