2. According to the passage, today’s successful firms, unlike successful firms in the past, may earn the greatest profits by（第一段第二句）
(A) investing in research to produce cheaper versions of existing technology
(B) being the first to market a competing technology
(C) adapting rapidly to a technological standard previously set by a competing firm
(D) establishing technological leadership in order to shape product definitions in advance of competing firms（E）
(E) emphasizing the development of methods for the mass production and distribution of a new technology*2E
3. According to the passage, consumers began to develop a preference for VCR’s in the VHS format because they believed which of the following?（最后一段）
(A) VCR’s in the VHS format were technically better than competing-format VCR’s.
(B) VCR’s in the VHS format were less expensive than competing-format VCR’s.
(C) VHS was the first standard format for VCR’s.
(D) VHS prerecorded videotapes were more available*3D than Beta-format tapes.（D）
(E) VCR’s in the Beta format would soon cease to be produced.
4. The author implies that one way that VHS producers won control over the VCR market was by
(A) carefully restricting access to VCR technology
(B) giving up a slight early lead in VCR sales in order to improve long-term prospects
(C) retaining a strict monopoly on the production of prerecorded videotapes
(D) sharing control of the marketing*4D of VHS-format VCR’s（D）
(E) sacrificing technological superiority over Beta-format VCR’s in order to remain competitive in price
5. The alignment of producers of VHS-format VCR’s with producers of prerecorded videotapes is most similar to which of the following?类比题
(A) The alignment of an automobile manufacturer with another automobile manufacturer to adopt a standard design for automobile engines.
(B) The alignment of an automobile manufacturer with an automotive glass company whereby (by, through, or in accordance with which) the manufacturer agrees to purchase automobile windshields only from that one glass company.
(C) The alignment of an automobile manufacturer with a petroleum company石油公司 to ensure the widespread availability of the fuel required by a new type of engine developed by the manufacturer.本质：配套产品的联合
(D) The alignment of an automobile manufacturer with its dealers to adopt a plan to improve automobile design.（C）
(E) The alignment of an automobile dealer with an automobile rental chain to adopt a strategy for an advertising campaign to promote a new type of automobile.
6. Which of the following best describes the relation of the first paragraph to the passage as a whole?主题题（写法性）
(A) It makes a general observation to be exemplified.结论解释型
(B) It outlines a process to be analyzed.
(C) It poses a question to be answered.
(D) It advances an argument to be disputed.（A）
(E) It introduces conflicting arguments to be reconciled
责任编辑：sealion1986
