以下哪个区域应列为缓冲区()
A.切牙乳突区
B.磨牙后垫区
C.后堤区
D.牙槽嵴顶
E.颊棚区
参考答案:A
1,2,5,10,17,()。
A.26
B.25
C.23
D.28
How is Mr Brown?()
A.He is tall and beautiful
B.He is very strict with us
C.He is fine
D.He is in an expensive car