【判断题】信息都是具有时效性的,其价值与时间成正比。()
【简答题】Who is Beethoven? He is one of the greatest ______ in the world.
【单选题】One of the greatest features of a home(74)is the ability to share one Internet connection simultaneously over two or more computers.
【单选题】“个人独处、无人监督时,也坚守自己的道德信念,对自己的言行小心谨慎,不做不道德的事”,这是中国传统的道德修养方法( )
【单选题】如果一个信号的频谱是离散的,则该信号的频率成分是( )。
【单选题】One of the greatest features of a home ______ is the ability to share one Internet connection simultaneously over two or more computers.
【单选题】如果一个信号的频谱是离散的。则该信号的频率成分是( )
【单选题】如果一个信号的频谱是离散的。则该信号的频率成分是()。
【单选题】如果一个信号的频谱是离散的,则该信号频率成分是()