●數(shù)據(jù)壓縮技術(shù)是多媒體信息處理中的關(guān)鍵技術(shù)之一,數(shù)據(jù)壓縮技術(shù)可分為 (56) 兩大類。 (57) 是一種與頻度相關(guān)的壓縮和編碼方法, (58) 主要用于視頻信息的壓縮, (59) 則常用于靜止圖片的信息壓縮。由三基色(RGB)原理出發(fā)的RGB彩色空間,在多媒體技術(shù)中最常用的,此外還有多種彩色空間,但 (60) 不是計算機(jī)上用的彩色空間。
(56) A.可逆與不可逆
B.高速與低速
C.編碼與非編碼
D.冗余與非冗余
(57) A.兆指令/秒
B.ISDN
C.哈夫曼
D.Gauss
(58) A.兆指令/秒
B.MPEG
C.JPEG
D.JIPS
(59) A.兆指令/秒
B.MPEG
C.JPEG
D.JIPS
(60) A.YUV
B.HIS
C.XYZ
D.IMG
●計算機(jī)的發(fā)展已進(jìn)入了網(wǎng)絡(luò)計算的新時代。Internet是目前世界范圍內(nèi)最大的互聯(lián)網(wǎng)。如此多的各種計算機(jī)之所以能通過Internet相互通信,是因為它們遵循了一套共同的Internet協(xié)議。這套協(xié)議的核心是 (61) ,在其上建立的無連接的運輸層協(xié)議是 (62) ,萬維網(wǎng)WWW上超文本傳輸遵循 (63) ,電子郵件傳輸遵循 (64) ,Ethernet與Internet連接時要用到 (65) 。
(61) A.TCP
B.IP
C.EIDFACT
D.HDLC
(62),(65) A.HDLC
B.ARP
C.UDP
D.FTP
(63) ~(64) A.FTP
B.ICMP
C.SMTP
D.HTTP
●A basic premise of OGSA is that everything is (66) by a service:a network enabledentity 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 components of the environment are virtual.Morespecifically,OGSA represents everything as a Grid service:a Web service that conforms (69) a set of conventions and supports standard interfaces for such purposes as lifetime management.This core set of consistent interfaces,from which all Grid services are implemente
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
D.limits
(68) A.elements
B.objects
C.services
D.capability
(69) A.of
B.to
C.as
D.from
(70) A.forms
B.groups
C.consist
D.Facilitates
●(71)data 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 difficulties of this is the(72)in hardware and software(73)integration uses a base document 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 B.Sharing C.General using D.Globalizing
(72)A.similarity B.interoperability C.diversity D.interaction
(73)A.Simulated B.Duplicated C.Dynamic D.Static
(74)A.Linked B.Pointed C.Dynamic D.Static
(75)A.High-leve language B.Decision tree
C.Pseudocode D.Flowchart
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