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一般常问问题

问题
我的USB 键盘和鼠标插在USB3.0接口，在DOS系统下无法使用，请问是为什么？

Answer
USB3.0接口不支持DOS系统．如果您把USB 键盘和鼠标插在USB3.0接口，在DOS系统下将无法使用，请把USB键盘和鼠标接在USB2.0接口．