牙列缺失后牙槽嵴吸收最快的部位是（）
A.上颌结节
B.前磨牙区
C.磨牙区
D.腭穹隆
E.前牙区
参考答案：E
I won't have anything like that _____ in my class. [ ]
A. saying
B. say
C. said
D. to say
简述水肿的病因及临床表现
