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(单选题) 11: PC/XT微机中串口1的I/O地址范围是（ )
A: 3F0H-3F7H
B: 3F8H-3FF
C: 2F0H-2FFH
D: 2F8H-2FF
(责任编辑：admin) |
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(单选题) 11: PC/XT微机中串口1的I/O地址范围是（ )
A: 3F0H-3F7H
B: 3F8H-3FF
C: 2F0H-2FFH
D: 2F8H-2FF
(责任编辑：admin) |