If firms in an industry are generating knowledge that other firms can use without paying for it, this industry is characterized by ___________.

The assumption of free entry implies that if firms in an industry are earning excessively high profits, new firms that seek to do the same thing are likely to______.

A．bring up

B．build up

C．spring up

D．strike up

● It should go without saying that the focus of UML is modeling. However, what that means, exactly, can be an open-ended question. （71）is a means tocaptureideas,relationships,decisions,andrequirements in a well-defined notation that can be applied to many different domains. Modeling not only means different things to different people, but also it can use different pieces of UML depending on what you are trying to convey. In general, a UML model is made up of one or more （72）. A diagram graphically represents things, and the relationships between these things. These （73）can be representations of real-world objects, pure software constructs, or a description of the behavior. of some other objects. It is common for an individual thing to show up on multiple diagrams; each diagram represents a particular interest, or view, of the thing being modeled. UML 2.0 divides diagrams into two categories: structural diagrams and behavioral diagrams. （74）are used to capture the physical organization of the things in your system, i.e., how one object relates to another. （75）focus on the behavior. of elements in a system. For example, you can use behavioral diagrams to capture requirements, operations, and internal state changes for elements.

（71）

A. Programming

B. Analyzing

C. Designing

D. Modeling

（72）

A. views

B. diagrams

C. user views

D. structure pictures

（73）

A. things

B. pictures

C. languages

D. diagrams

（74）

A. Activity diagrams

B. Use-case diagrams

C. Structural diagrams

D. Behavioral diagrams

（75）

A. Activity diagrams

B. Use-case diagrams

C. Structural diagrams

D. Behavioral diagrams

● It should go without saying that the focus of UML is modeling. However, what that means, exactly, can be an open-ended question. （71）is a means to capture ideas, relationships, decisions, and requirements in a well-defined notation that can be applied to many different domains. Modeling not only means different things to different people, but also it can use different pieces of UMLdepending on what you are trying to convey. In general, a UML model is made up of one or more （72） . A diagram graphically represents things, and the relationships between these things. These （73）can be representations of real-world objects, pure software constructs, or a description of the behavior. of some other objects. It is common for an individual thing to show up on multiple diagrams; each diagram represents a particular interest, or view, of the thing being modeled. UML 2.0 divides diagrams into two categories: structural diagrams and behavioral diagrams. （74）are used to capture the physical organization of the things in your system, i.e., how one object relates to another. （75） focus on the behavior. of elements in a system. For example, you can use behavioral diagrams to capture requirements, operations, and internal state changes for elements.

（71）

A. Programming

B. Analyzing

C. Designing

D. Modeling

（72）

A. views

B. diagrams

C. user views

D. structure pictures

（73）

A. things

B. pictures

C. languages

D. diagrams

（74）

. Activity diagrams

B. Use-case diagrams

C. Structural diagrams

D. Behavioral diagrams

（75）

A. Activity diagrams

B. Use-case diagrams

C. Structural diagrams

D. Behavioral diagrams

● It should go without saying that the focus of UML is modeling．However, what that means, exactly, can be an open-ended question． （71） is a means to capture ideas, relationships, decisions, and requirements in a well-defined notation that can be applied to many different domains．Modeling not only means different things to different people, but also it can use different pieces of UML depending on what you are trying to convey．In general, a UML model is made up of one or more （72） ． A diagram graphically representsthings, and the relationships between these things．These （73） can be representations ofreal-world objects, pure software constructs, or a description of the behavior. of some other objects．It is common for an individual thing to show up on multiple diagrams; each diagram represents a particular interest, or view, of the thing being modeled．UML 2.0 divides diagrams into two categories: structural diagrams and behavioral diagrams． （74） are used to capture the physical organization of the things in your system, i． e． , how one object relates

to another. （75) focus on the behavior. of elements in a system．For example, you can use behavioral diagrams to capture requirements, operations, and internal state changes forelements．

（71）

A．Programming

B．Analyzing

C．Designing

D．Modeling

（72）

A．views

B．diagrams

C．user views

D．structure pictures

（73）

A．things

B．pictures

C．languages

D．diagrams

（74）

A．Activity diagrams

B．Use-case diagrams

C．Structural diagrams

D．Behavioral diagrams

（75）

A．Activity diagrams

B．Use-case diagrams

C．Structural diagrams

D．Behavioral diagrams

It should go without saying that the focus of UML is modeling. However, what that means, exactly, can be an open-ended question．(71)is a means to capture ideas, relationships, decisions, and requirements in a well-defined notation that can be applied to many different domains. Modeling not only means different things to different people, but also it can use different pieces of UML depending on what you are trying to convey. In general, a UML model is made up of one or more(72)A diagram graphically represents things, and the relationships between these things. These(73)can be representations of real-world objects, pure software constructs, or a description of the behavior. of some other objects. It is common for an individual thing to show up on multiple diagrams; each diagram represents a particular interest, or view, of the thing being modeled. UML 2.0 divides diagrams into two categories: structural diagrams and behavioral diagrams．(74)are used to capture the physical organization of the things in your system, i.e., how one object relates to another．(75)focus on the behavior. of elements in a system. For example, you can use behavioral diagrams to capture requirements, operations, and internal state changes for elements.

A．Programming

B．Analyzing

C．Designing

D．Modeling

Are you worried about the rising crime rate? If yon

are, then you probably know that your house,

possessions and persons are increasingly in danger of

suffering from the tremendous rise in the cases of burglar 【S1】______

and assault. Figures indicate that it is an ever-increasing 【S2】______

crime rate but it is only too easy to imagine "it will

never happen to me". Unfortunately, statistics show it is 【S3】______

really can happen to you and, if you live in the large

city, you run twice the risk of being a victim. 【S4】______

Fortunately, there is something definite what you 【S5】______

can do. Protect Alarms can help to protect your house

with a burglar alarm system which is effective, simple to

operate and easily affordable. You may remember that 【S6】______

possessing a burglar alarm is no indication which your 【S7】______

house is packed with valuable possessions. It quite

simply indicates of unwelcome visitors that yours is one 【S8】______

house they will not break into easily so they carry on to

an unprotect house where their job is made a lot easier. 【S9】______

Send now for our free leaflet telling you how we can

protect and alarm your house quickly, easily and

cheaply. Complete out and tear off the slip below and 【S10】______

post it to us. Postage is free.

【S1】

Will Quality Eat up the U.S. Lead in Software?

If U. S. software companies don't pay more attention to quality．they could kiss their business good-bye. Both India and Brazil are developing a world-class software industry. Their weapon is quality and one of their jobs is to attract the top U. S. quality specialists whose voices are not listened to in their country. Already． of the world's 12 software houses that have earned the highest rating in the world．seven are in India. That's largely because they have used new methodologies rejected by American software specialists. For example．for decades．quality specialists W. Edwards Deming and J. M. Juran had urged U.S. software companies to change their attitudes to quality. But their quality call mainly fell on deaf ears in the U. S. ．but not in Japan. By the 1970s and 1980s．Japan was grabbing market share with better．cheaper products. They used Deming's and Juran' s ideas to bring down the．cost of good quality to as little as 5% of total production costs. In U. S.factories．the cost of quality then was 10 times as high: 50%0. In software．it still is. Watts S. Humphrey spent 27 years at IBM heading up software production and then quality assurance. But his advice was seldom paid attention to.He retired from IBM in 1986. In t987．he worked out a system for assessing and improving software quality. It has proved its value time and again. For example．in 1990 the cost of quality at Raytheon Electronics Systems was almost 60% of total software production costs. It fell to 15% in 1996 and has since further dropped to below 10%. lake Deming and Juran． Humphrey seems to be winning more praises overseas than at home. The Indian government and several companies have just founded the Watts Humphrey Software Quality Institute at the Software Technology Park in Chennai．India. Let's hope that U. S. lead in software will not be eaten up by its quality problems.

第 41 题 What country has more highest-rating companies in the world than any other country has?

A．Germany.

B．The U．S.

C．Brazil

D．India

Are you worried by the rising crime rate? If you are, then you probably know that your house, possessions and persons are increasingly in danger of suffering from the tremendous rise in the cases of burglary and assault. Figures indicate that there is an ever-increasing crime rate but it is only too easy to imagine "it will never happen to me". Unfortunately, statistics show that it really can happen to you and, if you live in a large city, you run twice the risk of being a victim.

Fortunately, there is something definite which you can do. Protect Alarms can help to protect your house with a burglar alarm system which is effective, simple to operate and easily affordable. You must re-member that possessing a burglar alarm is no indication that your house is packed with valuable possessions. It quite simply indicates to unwelcome visitors that yours is one house they will not break into easily, so they carry on to an unprotected house where their hob is made a lot easier.

Send now for our free leaflet telling you how we can protect your house quickly, easily and cheaply. Complete and tear off the slip below and post it to us. Postage is free. Alternatively, televice. It costs nothing to find out about Protect Alarms.

Anyone who takes an interest in the crime rate will, according to the text, be aware that ______ .

A．more burglars are being caught that ever before

B．people have more possessions to worry about nowadays

C．burglars are more at risk that they used to be

D．homes are more likely to be broken into nowadays