耳硬化病理组织学改变的特征是:________、________、________。
参考答案:骨质局灶性吸收与破坏 海绵样骨组织形成 骨质沉着与骨质硬化
角膜炎的病因有()
A.局部蔓延
B.接触传染
C.呼吸道感染
D.内源性
E.感染性
There is _____ wrong with this computer. It doesn't work well. [ ]
A. something
B. anything
C. everything
D. nothing