单项选择题
A.2F8和IRQ3 B.3F8和IRQ4 C.3E8和IRQ2 D.2E8和IRQ1
A.2 B.4 C.8 D.16
A.FDD B.COM1 C.INTC1 D.LPT1
A.378 B.070 C.278 D.170
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