实现DMA传送操作三种方式:()
参考答案:周期挪用方式;周期扩展方式;CPU停机方式
—Amy, I bought a dress made _____ silk yesterday.
— Wow, it looks lovely _______ you.
A.of, on
B.from, on
C.of, for
D.from, for
下列关于呼吸道功能的说法,不正确的是( )
A.保证空气顺畅通过
B.气体进出肺的通道
C.对空气进行处理
D.保持环境中空气新鲜