以下计算机存储部件中，存取速度最快的是（）。
A．高速缓存Cache
B．512MB内存
C．CPU内部寄存器
D．500GB硬盘
参考答案：C
解析：
在计算机中，用于存放程序或数据的存储部件有CPU内部寄存器、高速缓存Cache、内存和大容量磁盘。它们的存取速度不一样，其中设置在CPU内部并作为CPU后一个组成部分的内部寄存器的存取速度最快。通常，大容量磁盘的存取速度最慢。
| 完形填空。 Mike and Ann are 1 They live in a large house. The house is 2 the foot of a mountain (big hill). Near the mountain 3 a lake. There are four people in the family: Mike, Ann, their father and their mother. Their father is a farmer. He 4 a farm not far from their house. Their mother is at home. She is a housewife (家庭主妇). Mike and Ann go to school every day. They are 5 , but they are 6 . Mike is in Grade 2. Ann is in Grade 1. Mike likes sports. He likes swimming and playing football. After school he often plays football 7 his classmates. Ann is a good girl. After school, she often goes home to help her mother 8 the housework. | ||||
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