●早期的计算机网络是由 (53) 组成系统。

ata effectively is crucial for success in today's competitive environment Managers must know how to use a variety of tools Integrated data takes information from different sources and puts it together in a meaningful and useful way One of the difficult
base do
cument that contains copies of other objects(74)integration uses a base
document that contains the current or most recent version of the source document it contains (75)provides an overview of the program written in"plain"English,without the computer syntax (71)A.Generalizing&nb
C.Pseudocode D.Flowchart

: ●计算机的发展已进入了网络计算的新时代。Internet是目前世界范围内最大的互联网。如此多的各种计算机之所以能通过Internet相互通信，是因为它们遵循了一套共同的Internet协议。这套协议的核心是 (61) ，在其上建立的无连接的运输层协议是 (62) ，万维网WWW上超文本传输遵循 (63) ，电子邮件传输遵循 (64) ，Ethernet与Internet连接时要用到 (65) 。
(61)

: ●数据压缩技术是多媒体信息处理中的关键技术之一，数据压缩技术可分为 (56) 两大类。 (57) 是一种与频度相关的压缩和编码方法， (58) 主要用于视频信息的压缩， (59) 则常用于静止图片的信息压缩。由三基色(RGB)原理出发的RGB彩色空间，在多媒体技术中最常用的，此外还有多种彩色空间，但 (60) 不是计算机上用的彩色空间。
(56)

A
basi
c premise of OGSA is that everything is (66) by a service：a network enable
dentity that (67) some capability through the exchange of messages.Computational resources，storage resources，networks，programs，databases，and so forth are all (68) .This adoption of auniform. service-oriented model means that all compon
D． (70) theconstruction of hierarchical，higher-order services that can be treated in a uniform. way across layersof abstraction. (66) A．defined
B．represented
C．used
D．passed (67) A．provides
B．have
C．expands