鼻疳的病变部位主要在
A．鼻梁
B．鼻尖
C．鼻前庭
D．固有鼻腔
E．鼻窦
参考答案：C
—Was Lingling born in Xiamen?
— . She was born in Qingdao. [ ]
A. Yes , she was
B. No , she wasn't
C. Yes , she wasn't
D. No , she was
Pentium机与486DX相比，其特点是( )。
A．内部数据总线32位
B．内部有高速缓冲存储器
C．具有浮点处理功能
D．外部数据总线64位
