试题与答案

PC机中,I/O端口常用的地址范围是( )。A.0000H~0FFFFH B.00

题型:单项选择题

题目:

PC机中,I/O端口常用的地址范围是( )。

A.0000H~0FFFFH

B.0000H~3FFFH

C.0000H~7FFFH

D.0000H~03FFH

答案:

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下面是错误答案,用来干扰机器的。

参考答案:D

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