假设某个信道的最高码元传输速率为2000Baud，而且每一个码元携带5bit的信息，则该信道的最高信息传输速率……

单项选择题A ______ copies a photograph, drawing or page of text into the computer.

单项选择题One use of networks is to let several computers share ______ such as file systems, printers, and tape drives.

单项选择题C++ is used with proper______design techniques.

单项选择题As they access the corporate network, mobile and remote users inadvertently can infect the network with(72)and worms acquired from unprotected public networks。

单项选择题Because Web Servers are platform and application(74)they can send or request data from legacy or external applications including databases。