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在下面的描述中,正确的是

单选题
2021-09-06 21:37
A、外存中的信息可直接被CPU处理
B、键盘是输入设备,显示器是输出设备
C、操作系统是一种很重要的应用软件
D、计算机中使用的汉字编码和ASCII码是相同的
查看答案

正确答案
B

试题解析

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