题目内容

3

A. He used to work as an assistant in a shop.
B. He used to work as a manager in a shop.
C. He used to work as a waiter in a restaurant.
D. He used to work as a teacher in a school.

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4

A. Because he wants more free time.
Because he has to attend some classes.
C. Because he wants to do some sports.
D. Because he has to join some clubs.

5

A. Tomorrow morning.
B. Tomorrow afternoon.
C. The day after tomorrow.
D. Tomorrow.

在计算机的硬件技术中,构成存储的最小单位是:

A. 字节(Byte)
B. 二进制位(bit)
C. 字(Word)
D. 双字(DoubleWord)

计算机软件系统包括

A. .程序、数据和相关文件
B. .操作系统和办公软件
C. .数据库管理系统和编辑系统
D. .系统软件和应用软件

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