单项选择题
According to Shannon's equation, what is the channel capacity of an analog voice-grade phone line with a bandwidth of 3100 Hz and a signal-to-noise ratio or 30 dB
A.9.1 Kbps
B.9.3 Kbps
C.30.9 Kbps
D.30.17 Kbps
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单项选择题
软件设计将涉及软件的结构、过程和模块的设计,其中软件过程是指
A.模块间的关系
B.模块的操作细节
C.软件层次结构
D.软件开发过程
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