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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。 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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发布时间：2022-12-03

更多“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)”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。 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3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4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.

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(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5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6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7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8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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第9题

选出应填入下面一段英语中______内的正确答案。 With hundreds of rrullions of electronic （1) taking

选出应填入下面一段英语中______内的正确答案。

With hundreds of rrullions of electronic(1)taking place daily, businesses and organizations have a strong incentive to protect the(2)of the data exchanged in this manner, and to positively ensure the(3)of those involved in the transactions. This has led to an industry-wide quest for better, more secure methods for controlling IT operations, and for deploying strong security mechanisms deeply and broadly throughout networked infrastructures and client devices. One of the more successful concepts to engage the imaginations of the security community has been the development of standards-based security(4)that can be incorporated in the hardware design of client computers. The principle of encapsulating core security capabilities in(5)and integrating security provisions at the deepest levels of the machine operation has significant benefits for both users and those responsible for securing IT operations.

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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。 SOX is an alternative （1) for XML. It is useful for

选出应填入下面一段英语中______内的正确答案。

SOX is an alternative(1)for XML. It is useful for reading and creating XML content in a(2)editor. It is then easily transformed into proper XML. SOX was created because developers can spend a great deal of time with raw XML. For many of us, the popular XML(3)have not reached a point where their tree views, tables and forms can completely substitute for the underlying(4)language. This is not surprising when one considers that developers still use a text view, albeit enhanced, for editing other languages such as Java. SOX uses(5)to represent the structure of an XML document, which eliminates the need for closing tags and a number of quoting devices. The result is surprisingly clear.

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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。 Since the time of John von Neumann, the basic conceptua

选出应填入下面一段英语中______内的正确答案。

Since the time of John von Neumann, the basic conceptual model used to think about computers and programs has(1)unchanged, in(2)of many advances in both hardware and software technology. In the(3)that von Neumann proposed, the basic instruction cycle is for the processor to fetch the instruction pointed at by the program counter,(4)the program counter, and then execute the instruction. Because instructions are executed strictly sequentially, there is little inherent parallelism, and(5)opportunity to employ large numbers of processors to gain speed.

供选择的答案：

(1) small (2) big (3) add (4) little (5) model

(6) remained (7) style (8) increase (9) stead (10) spite

(11) already (12) period (13) formula (14) decrease (15) not

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