小品文包括（）为题的文章。
A.序
B.书
C.赞
D.碑
参考答案：A, B, C, D
从下列哪一种微处理器开始，增加了虚拟8086存储器管理模式？
A．80286
B．80386
C．80486
D．PentiumPro
After school I found Mother was in bed sick. ____ Mother was ill, I should do something for her.[ ]
A. So
B. Though
C. Since
D. If
l I found Mother was in bed sick. ____ Mother was ill, I should do something for her.[ ]