24. In developing personal relationships, secrets and deceptions, in the author's opinion, are .

　　A) personal matters that should be seriously dealt with

　　B) barriers that should be done away with.

　　C) as significant as disclosures and truthful statements

　　D) things people should guard against

　　25. The author's purpose in writing the passage is .

　　A) to give advice on appropriate conduct for social occasions

　　B) to provide ways of how to obtain information about people

　　C) to call the reader's attention to the negative side of people's characters

　　D) to discuss the various aspects of getting to know people

　　Questions 26 to 30 are based on the following passage:

　　The competition among producers of personal computers is essentially a race to get the best, most innovative products to the marketplace. Marketers in this environment frequently have to make a judgment as to their competitors' role when making marketing strategy decisions. If major competitors are changing their products, then a marketer may want to follow suit to remain competitive. Apple Computer, Inc. has introduced two new, faster personal computers, the Mackintosh Ⅱ and Mackintosh SE, in anticipation of the introduction of a new PC by IBM, one of Apple's major competitors.

　　Apple's new computers are much faster and more powerful than its earlier models. The improved Mackintosh is able to run programs that previously were impossible to run on an Apple PC, including IBM-compatible (兼容的) programs. This compatibility feature illustrates computer manufacturers' new attitude of giving customers the features they want. Making Apple computers capable of running IBM software is Apple's effort at making the Mackintosh compatible with IBM computers and thus more popular in the office, where Apple hopes to increase sales. Users of the new Apple can also add accessories (附件) to make their machines specialize in specific uses, such as engineering and writing.

　　The new computers represent a big improvement over past models, but they also cost much more. Company officials do not think the higher price will slow down buyers who want to step up to a more powerful computer. Apple wants to stay in the High-price end of the personal computer market to finance research for even faster, more sophisticated computers.

　　Even though Apple and IBM are major competitors, both companies realize that their competitor's computers have certain features that their own models do not. The Apple line has always been popular for its sophisticated color graphics (圖形), whereas the IBM machines have always been favored in offices. In the future, there will probably be more compatibility between the two companies' products, which no doubt will require that both Apple and IBM change marketing strategies.

　　26. According to the passage, Apple Computer, Inc, has introduced the Mackintosh Ⅱ and the Mackintosh SE because .

　　A) IBM is changing its computer models continuously

　　B) it wants to make its machines specialize in specific uses

　　C) it wants to stay ahead of IBM in the competitive computer market

　　D) it expects its major competitor IBM to follow its example

　　27. Apple hopes to increase Mackintosh sales chiefly by .

　　A) making its new models capable of running IBM software

　　B) improving the color graphics of its new models

　　C) copying the marketing strategies of IBM

　　D) giving the customers what they want

　　28. Apple sells its new computer models at a high price because .

　　A) they have new features and functions

　　B) they are more sophisticated than other models

　　C) they have new accessories attached

　　D) it wants to accumulate funds for future research