Which of the following can be inferred from Paragraph 4？
A. Companies are not actively making efforts to make use of the cheap resources of netizens.
B. In the future most of the inventions may come from elites instead of the common people.
Companies may not rely on common people"s ideas to solve a technical problem.
D. Companies cannot afford to get rid of their R&D departments.
According to the passage the lack of qualified workers
A. makes a cooling of the economy.
B. increases the costs of high technology companies.
C. emphasizes the importance of unfilled jobs.
D. hinders the development of U. S. economy.
阅读教材案例十三兰啤在自己与被收购企业之间搭起了品牌和财务两道防火墙。()
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