以下不属于网络操作系统的软件是

计算机与打印机之间的通信属于

承载信息量的基本信号单位是

There is an increasing_ (tend) for women to have children later in life

一座大楼内的一个计算机网络系统.属于

从决策的主体来划分,可以将决策分为()。

A task of the post office staff is to_ (class) mail according to the places it is to go

CSMA/CD总线网适用的标准

The_ (month) salary for the position will be negotiable at around $2,000.

Internet服务提供者的英文简写是