题目内容

计算机系统包括:

A. 硬件系统和软件系统
B. 机箱及主机、键盘、显示器、鼠标、打印机
C. 系统软件和应用软件
D. 微处理器及其他硬件

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I have been busy these days, and I intend to ____ my shop to go traveling.

A. close by
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A. vulnerable
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