Wireless range-extenders or wireless repeaters can _________ an existing wireless network.

You are developing a Windows Communication Foundation (WCF) service to replace an existing ASMX Web service.The WCF service contains the following code segment. (Line numbers are included for reference only.)

01 [ServiceContract()]

02

03 public interface IEmployeeService

04 {

05 [OperationContract()]

06 EmployeeInfo GetEmployeeInfo(int employeeID);

07

08 }

09

10 public class EmployeeService : IEmployeeService

11 {

12

13 public EmployeeInfo GetEmployeeInfo(int employeeID)

14 {

15 ...

16 }

17 }

18

19

20 public class EmployeeInfo

21 {

22 ...

23 public int EmployeeID { get; set; }

24 public string FirstName { get; set; }

25 public string LastName { get; set; }

26

27 }The existing Web service returns the EmployeelD as an attribute of the Employeelnfo element in the response XML.You need to ensure that applications can consume the service without code changes in the client.

What should you do?（）

In organized exercise programs, exercise therapists or physiologists can expertly guide an exerciser to the proper way to increase his or her ______ without risking injury or fatigue.

According to the passage, virgin-soil epidemics can be distinguished from other catastrophic outbreaks of disease in that virgin-soil epidemics

A．recur more frequently than other chronic diseases.

B．affect a minimum of one-half of a given population.

C．involve populations with no prior exposure to a disease.

D．usually involve a number of interacting diseases.

E．are less responsive to medical treatment than are other diseases.

Which of the following is true according to the passage?

A．All the literary works can improve the readers' language, grammar and rhetoric.

B．Watching TV is not passive since it let watchers experience the sensation.

C．The literature remains not affected by TV in America.

D．Jerry Mander suggests that people should ban television to some extent.

听力原文：W: Do you think you can give an exact definition of "management"，Mr．Rogers?

M: Management is the process of achieving results through other people．

W: What are the functions of management?

M: There are mainly four．The first is planning．Managers define goals，establish strategy and develop plans to co-ordinate activities．

W: That's not easy，I think．

M: No．And the second is organizing，which means managers will determine what tasks to be done，who is to do them，how the tasks are to be grouped，who reports to whom，etc．

W: That's complicated．

M: And the third is leading．It includes motivating subordinates，directing others，selecting the most effective communication channels and resolving conflicts．

W: Do you think the goal of good management is to get rid of conflicts?

M: Actually，we've made considerable progress towards overcoming the view that conflict is bad．

W: So you mean conflicts can be good fur an organization?

M: Yes．Conflicts can be used to bring about substantial changes to the existing power structure，current patterns of interaction between people at work，and attitude．

W: That surprises me．

M: The last function controlling means to monitor activities to ensure they are being accomplished as planned，and correct significant deviations．

W: It is said that all managers need to realize that the more they delegate now，the less time will take to accomplish tasks later．Is that true?

M: Right．Without delegation，managers run the risk of being a "doer" rather than a "manager".

W: Can I understand this as "delegation is a ticket to fide free and have others to do your work"?

M: Not exactly．it is rather a means for managers to focus on their true functions，

(20)

A．It is getting things done through other people.

B．It is helping an organization find the right staff.

C．It is assembling people of different abilities.

D．It is communicating between colleagues.

These cameras do not take a______ photograph but a series of images or scans indicating when each athlete crosses the finishing line.

A．classical

B．conservative

C．conventional

D．formal

According to the author, which is the best source that college students can rely upon if there are outbreaks of bird flu on college campuses?

A．The national stockpile of Tamiflu.

B．The government's medical resources.

C．Drugs provided by the feds.

D．The stockpile of the students health centers.

For gathering data about individuals or groups at different developmental levels, researchers can use two related research designs: longitudinal and cross-sectional. A longitudinal study is one that measures a behavior. or a characteristic of an individual over a period of time, perhaps decades. An example of such a study is the Berkeley Growth Study begun in 1928 by Nancy Bayley. The study focused on a group of 74 white, middle-class newborns. As they grew older, extensive measures of their intellectual, personality, and motor development were recorded. The subjects were studied for more than thirty years. The longitudinal research design is a powerful technique for seeking understandings of the effects of early experiences on later development. Also, differences in stability of behaviors or characteristics at different ages can be determined. Longitudinal studies, however, are expensive to conduct, time-consuming, and heavily contingent on the patience and persistence of the researchers. The findings of a longitudinal study may be jeopardized by relocation of subjects to another part of the country and by boredom or irritation at repeated testing. Another disadvantage is that society changes from one time to another and the subjects participating in the study reflect to some degree such changes. The methods of study or the questions guiding the researchers may also change from one time to another. If properly conducted, however, longitudinal studies can produce useful, direct information about development. A cross-sectional study is one in which subjects of differing ages are selected and compared on a specific behavior. or characteristic. They are alike with respect to socioeconomic status, sex, or educational level. For example, a researcher may be interested in looking at changes in intelligence over a thirty-year period. Three groups of subjects—ages ten, twenty and thirty, may be selected and tested. Conclusions are drawn from the test data. The cross-sectional research design has the clear advantage of being less expensive to conduct and certainly less time-consuming. The major disadvantage is that different individuals who make up the study sample have not been observed over time. No information about past influences on development or about age-related changes is secured. Like longitudinal studies, the cross-sectional methods cannot erase the generational influence that exists when subjects studied are born at different time. Psychologists are now beginning to use an approach that combines longitudinal and cross-sectional research methods.

Which of the following is NOT one of the disadvantages of a longitudinal research?

A．The subjects may become irritated at repeated testing.

B．The participants in the study may not stay in one place for many years.

C．The behavior. of a subject in the study may be measured continuously for many years.

D．Social changes may be reflected in the behaviors of the subjects participating in the study.

Task 2

Directions: This task is the same as Task 1. The 5 questions or unfinished statements are numbered 41 through 45.

You have probably seen ads in newspaper or on television for mail-order companies. Perhaps a catalogue has been sent to you. Why do people buy things they have not seen in person? Some people believe that things can be bought more cheaply by mail. Another good thing about buying by mail is that it is easier and more enjoyable to sit at home and work through a catalogue than to shop around the stores. With a catalogue from a large company, you have your own shop window for almost everything you want to buy.

Buying from a catalogue is so easy. It saves the shopper time and trouble. Sometimes, it saves the shopper money, too. But people often buy more than they can really afford or need, because many things look so good to them They can probably pay a certain part of the full price-a down payment. Then they pay a certain amount of money every month until the goods is paid for in full. But by then they often find what they have bought are of no use at all.

Why do people buy things without seeing them in person?

A．To enjoy themselves.

B．To save money and trouble.

C．To get more than they need.

D．To look for something new.

Why is the woman so keen on the rock climbing?

A．Climbers can develop skills useful in other activities.

B．Climbing is not as expensive as other sports.

C．Learning to climb does not take very long time.

D．Climbers have the opportunity to be outside and enjoy the scenery.