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操作系统是计算机系统中的（　　）。

单选题

2021-07-17 21:15

A、核心系统软件
B、关键的硬件部件
C、广泛使用的应用软件
D、外部设备

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正确答案

A

试题解析

标签：综合类计算机计算机一级网络技术数据库技术信息安全技术嵌入式系统开发技术网络工程师数据库工程师信息安全工程师嵌入式系统开发工程师 2002年9月全国计算机等级考试一级WINDOWS笔试真题

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