网络管理的功能划分为五类：（）、配置管理、性能管理、安全管理、计费管理.
A、备份管理
B、系统进程管理
C、用户管理
D、故障管理
参考答案：D
Mobile computers-which (71) laptops, notebooks, subnotebooks and handhelds- (72) so ubiquitous in such a short time, no surprise to hear who say: "It will define the leading edge (73) the next five years or so." The most remarkable (74) mobile computers is the amount of data storage and memory packed (75) their tiny boxes. These devices not only handle windows easily but also run storage-hungry programs.
（72）处是（）
A.included
B.include
C.have included
D.have become
E.had become
什么是公路的大修工程？有什么规定？
