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从下面提供的答案中选出应填入下列英文语句中______内的正确答案。 A local-area network（LAN) is a commun

从下面提供的答案中选出应填入下列英文语句中______内的正确答案。

A local-area network(LAN) is a communications network that(1)a variety of device and provides a(2)for information exchange among those devices. The scope of the LAN is small typically a single building or a cluster ofbuildings. The LAN is usually owned by the same organization that owns the(3)devices. The internal data rate of LAN is at least several Mbps. The basic Of LAN communication is broadcasting. At each station, there is a transmitter/ receiver that communicates over a(4)shared by other stations.A transmission from any one station is(5)to and received by all other stations.

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更多“从下面提供的答案中选出应填入下列英文语句中______内的正…”相关的问题

第1题

从下面提供的答案中选出应填入下列英文语句中______内的正确答案。 Because Web servers are platform and

从下面提供的答案中选出应填入下列英文语句中______内的正确答案。

Because Web servers are platform and application(1),they can send or request data from legacy or external applications including databases. All replies, once converted into(2)mark-up language, can then be transmitted to a(3). Used in this way, Intranets can(4)lower desktop support costs, easy links with legacy applications and databases and,(5)all, ease of use.

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第2题

从下面提供的答案中选出应填入下列英文语句中______内的正确答案。 Software design is a （1) process.

从下面提供的答案中选出应填入下列英文语句中______内的正确答案。

Software design is a(1)process. It requires a certain(2)of flair on the part of the designer. Design cannot be learned from a book. It must be practiced and learnt by experience and study of existing systems. A well(3)software system is straight-forward to implement and maintain, easily(4)and reliable. Badly(3)software system, although they may work, are(5)to be expensive to maintain, difficult to test and unreliable.

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第3题

2．从下面提供的答案中选出应填入下列英文语句中______内的正确答案。 Software quality assurance is now a

2．从下面提供的答案中选出应填入下列英文语句中______内的正确答案。

Software quality assurance is now an(1)sub-discipline of software engineering. As Buckly and Oston point out,(2)software quality assurance is likely to lead to an ultimate(3)of software costs. However, the major hurdle in the path of software management in this area is the lack of(4)software standards. The development of accepted and generally applicable standards should be one ofthe principal goals of(5)in software engineering.

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第4题

从下面提供的答案中选出应填入下列英文语句中______内的正确答案。 The relational database model require

从下面提供的答案中选出应填入下列英文语句中______内的正确答案。

The relational database model requires the data be(1)through programs that don't rely on the position of the data in the database. This is in direct(2)to the other database mode, where the program has to follow a series of pointers to the data it seeks.A program(3)a relational database simply asks for the data it seeks; the DBMS performs the necessary searches and(4)the information. The(5)on how the search is done are specific to the DBMS and vary from product to product.

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第5题

从下面提供的答案中选出应填入下列英文语句中______内的正确答案。 Mobile computers—which （1) laptop

从下面提供的答案中选出应填入下列英文语句中______内的正确答案。

Mobile computers—which(1)laptops, notebooks, subnotebooks and handhelds—(2)so ubiquitous in such a short time, no surprise to hear who say:"It will define the leading edge(3)the next five years or so."The most remarkable(4)mobile computers is the amount of data storage and memory packed(5)their tiny boxes. These devices not only handle windows easily but also run storage-hungry programs.

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第6题

从下面提供的答案中选出应填入下列英文语句中______内的正确答案。 By using MP3, a 600M-byte music CD ca

从下面提供的答案中选出应填入下列英文语句中______内的正确答案。

By using MP3, a 600M-byte music CD can be(1)to 50M bytes or less. It can be streamed (downloaded in chunks) so that you can begin listening to the opening bars while the(2)of the life arrives in the background. And, most important, MP3 music files retain good listening(3)that(4)compression schemes lacked. That(5)of features makes accessing and distributing music on the Web practical for the frst time.

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第7题

从下面提供的答案中选出应填入下列英文语句中______内的正确答案。 When most people refer to multimedia,

从下面提供的答案中选出应填入下列英文语句中______内的正确答案。

When most people refer to multimedia, they generally mean the combination of two or more continuous media, usually with some user(1). In practice, the two media are normally audio and video, this is,(2)plus moving(3).

It should be obvious by now that transmitting multimedia material in uncompressed form is completely out of the(4). The only hope is that massive compression is possible. Fortunately, a large body of research over the past few decades has led to many compression techniques and algorithms that make multimedia transmission(5)．

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