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[主观题]

选出应填入下面一段英语中______内的正确答案。 Asynchronous Transfer Mode （ATM)is a （1) that promi

选出应填入下面一段英语中______内的正确答案。

Asynchronous Transfer Mode (ATM)is a(1)that promises to change the fabric of local and wide area communications.

The key advantage of ATM is the capability to move voice, data, graphics and(2)at speeds ofup to 2 gigabits per second.

At ATM switch allows you to create a(3)network that is completely independent from the(4)configuration ofthe network.

ATM uses a(5)called cell switching to convert data into fixed length cells of 53 bytes each, so they can be switched very quickly and efficiently.

供选择的答案：

(1) technology (2) techniques (3) technique (4) method

(5) methods (6) logical (7) local (8) wide

(9) physical (10) program (11) characters (12) video images

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更多“选出应填入下面一段英语中______内的正确答案。 Asyn…”相关的问题

第1题

选出应填入下面一段英语中______内的正确答案。 In a public-key cryptosystem, （1) encrypted with th

选出应填入下面一段英语中______内的正确答案。

In a public-key cryptosystem,(1)encrypted with the public key can only be deciphered with the private key from the same(2). Conversely,(1)encrypted with the private key can be decrypted only with the public key. Users can make their public keys(3)available or place them at a key distribution center or others to access. However, the private key must be(4)safe. In public-key systems there's no(5)to find a safe channel for communicating a shared secret key.

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第2题

选出应填入下面一段英语中______内的正确答案。 The task at hand now is to （1) the programmers who

选出应填入下面一段英语中______内的正确答案。

The task at hand now is to(1)the programmers who still use yesterday's software technology to solve today's software problems. Object-oriented programming requires a new attitude toward problem(2). Problem(2)with computer system becomes more natural. Application can(3)be translated into(4). It is commonly believed that it will be easier to train new programmers to use object-oriented techniques than to(5)programmers who have substantial experience in applying conventional programnung language constructs.

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第3题

选出应填入下面一段英语中______内的正确答案。 Rapid application development （RAD) systems purport to

选出应填入下面一段英语中______内的正确答案。

Rapid application development (RAD) systems purport to lighten the developer's(1)by making it easy to program an application with simple intuitive steps.

RAD tools(2)the developer everything needed to construct afully functional application quickly and easily. They make short work of modifying the developed with product to(3)changes after the program is finished. Applications developed with RAD tools are constructed as they are envisioned. As an application's real usefulness(4), the developer armed with a RAD tools should be able to(5)on new features with little fuss.

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第4题

选出应填入下面一段英语中______内的正确答案。 TCP functions at the Open System Interconnection （OSl)

选出应填入下面一段英语中______内的正确答案。

TCP functions at the Open System Interconnection (OSl)(1)layer, or Layer 4. Its chief responsibility is to ensure(2)end-to-end connectivity. IP, located one layer down, at the OSI network layer, or Layer 3,communicates the addresses of each(3)sender and receiver to the routers along the way. Routers and Layer 3 switches can read IP and other Layer 3(4). This information, combined with routing tables and other network intelligence, is all it takes to get(5)the room or around the world via TCP/IP.

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第5题

选出应填入下面一段英语中______内的正确答案。 All known techniques for handling complex problems succ

选出应填入下面一段英语中______内的正确答案。

All known techniques for handling complex problems successfully seem to fall into one of the three classes: subdividing the problem(1), ignoring irrelevant detailin a safe way(2), and having an independent agent(3)the internal consistency (contextual checking) The first two provide guidelines for solving the problem, the third serves to provide early warnings. A good programming language supports all three.

In subdividing problem, some of the subproblems may be similar to the(4)problem. It leads us to a(5)solution. This(5)solution is viable provided each of the subproblems is easier to solve than the original problem.

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第6题

选出应填入下面一段英语中______内的正确答案 The terms FIFO and LIFO refer to two techniques for （1

选出应填入下面一段英语中______内的正确答案

The terms FIFO and LIFO refer to two techniques for(1)with collection of items to which additions and(2)are to be made. The acronym FIFO(3)for first-in-first-out and LIFO represents last-in-first-out. Derived from business accounting and investing management(4), these techniques have found widespread application in computer science. For example, the LIFO technique has been used in the parsing techniques employed by compilers and in the(5)of data.

供选择的答案：

(1) producing (2) dealing (3) networking (4) searching

(5) deletions (6) locations (7) observations (8) notations

(9) stands (10) represents (11) finds (12) replaces

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第7题

选出应填入下面一段英语中______内的正确答案。 One of the most difficult problems with systems （1)

选出应填入下面一段英语中______内的正确答案。

One of the most difficult problems with systems(1)is understanding and(2)patterns that will be jointly achieved by the components of a system. To understand this term, think of a(3)like a mouse click that triggers some chains of causally related responsibilities performed in software. One way of looking at this is from outside the system,a mouse click causes a file icon to open on a screen. Another way to view this is from inside, the responsibilities of handling the click are decentralized in a set of objects in a running program and the click(4)through this set by means of a causally connected sequence ofinterobject(5). One ofthe objects causes the file icon to open on the screen.

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第8题

选出应填入下面一段英语中______内的正确答案。 VRML is a （1) for 3D multimedia and shared virtual

选出应填入下面一段英语中______内的正确答案。

VRML is a(1)for 3D multimedia and shared virtual worlds on the WWW. In comparison to HTML, VRML adds the next level of interaction, structured graphics, and extra(2)(z and time) to the presentation of documents. The applications of VRML are(3), ranging from simple business graphics to entertaining WWW page graphics, manufacturing, scientific, entertainment, and educational applications, and 3D shared virtual worlds and communities.

X3D is the name under which the development of VRML is continued. X3D is based on XML and is backwards(4)with VRML. Furthermore, it is componentized, profiled, and extensible, which makes it possible to use X3D in very different(5), from high-end visualizations to lightweight applications.

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第9题

选出应填入下面一段英语中______内的正确答案。 The approach we propose is a system-oriented methodolog

选出应填入下面一段英语中______内的正确答案。

The approach we propose is a system-oriented methodology for knowledge acquisition, this orientation emphasizes ongoing documentation throughout each cycle and technique applied. Program-wide documentation is suggested, both for the purpose ofinternal(1)and for later verification and(2)efforts. The documentation system we propose includes a central "knowledge acquisition(3)" which is(4)to reflect knowledge acquisition plans, session nodes, and domain expert participation. Specifically,(5)within the database system include knowledge acquisition forms, which document plans for, and notes from, knowledge acquisition session, domain expert file, and rule content forms.

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第10题

选出应填入下面一段英语中______内的正确答案。 Although the bulk ofindustry resources and energies hav

选出应填入下面一段英语中______内的正确答案。

Although the bulk ofindustry resources and energies have focused on developing the fastest(1)or slickest(2), more and more mindshare is turning to the evolution of the computer interface. Advancements in the areas ofinput device,(3)processing and virtual reality could lead to fundamental changes in the way human and computer interact. The technological battlefield of the future will be adding layers between the user and the raw machine to make the(4)as invisible as possible.(5)represents the next evolutionary step for the interface.

供选择的答案：

(1) voice (2) microprocessor (3) GUI (4) workstation

(5) application software (6) operating system

(7) interface (8) DBMS (9) virtual reality (10) eye-tracking device

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第11题

选出应填入下面一段英语中______内的正确答案。 Astute service providers realize that the continued sup

选出应填入下面一段英语中______内的正确答案。

Astute service providers realize that the continued support oflegacy X.25 and asynchronous network elements using separate operations network is cost(1). For example, the maintenance of multiple networks can require additional staff. Often, this staff must be trained on multiple vendor technologies, sometimes requiring parallel groups specializing in each(2). Hence, additional maintenance procedures must be maintained and administrative records are(3). The duplication oftransport facilities to carry(4)network traffic is an inefficient use of resources. And not surprisingly, more technologies installed in a central office mean the necessity for more physical space, and an increase in power connections and power consumption. Migration ofthese(5)network elements to IP-based DCns is alogical strategy.

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