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Many of the tech industry’s biggest companies, like Amazon, Google, IBM and Microsoft, are jockeying to become the leader for ar

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问题     Many of the tech industry’s biggest companies, like Amazon, Google, IBM and Microsoft, are jockeying to become the leader for artificial intelligence(A.I.). In the industry’s term, the companies are engaged in a "platform war."
    A platform, in technology, is essentially a piece of software that other companies build on and that consumers cannot do without. Become the platform and huge profits will follow. Microsoft dominated personal computers because its Windows software became the center of the consumer software world. Google has come to dominate the Internet through its ubiquitous search bar. If true believers in A.I. are correct that this long-promised technology is ready for the mainstream, the company that controls A.I. could steer the tech industry for years to come. "Whoever wins this race will dominate the next stage of the information age," said Pedro Domingos, a machine learning specialist and the author of "The Master Algorithm," a 2015 book that contends that A.I. and big-data technology will remake the world.
    In this fight—no doubt in its early stages—the big tech companies are engaged in tit-for-tat publicity stunts, circling the same start-ups that could provide the technology pieces they are missing and, perhaps most important, trying to hire the same brains. Fei-Fei Li, a Stanford University professor who is an expert in computer vision, said one of her Ph.D. candidates had an offer for a job paying more than $1 million a year, and that was only one of four from big and small companies.
    For years, tech companies have used man-versus-machine competitions to show they are making progress on A.I. In 1997, an IBM computer beat the chess champion Garry Kasparov. Five years ago, IBM went even further when its Watson system won a three-day match on the television trivia show "Jeopardy!" Today, Watson is the centerpiece of IBM’s A.I. efforts.
    By 2020, the market for machine learning applications will reach $40 billion, IDC, a market research firm, estimates. And 60 percent of those applications, the firm predicts, will run on the platform software of four companies—Amazon, Google, IBM and Microsoft. Intelligent software applications will become commonplace, said Jeff Dean, a computer scientist who oversees Google’s A.I. development. "And machine learning will touch every industry."
What’ s the author’ s attitude towards the future of A.I.?
选项 A、Negative.
B、Positive.
C、Unclear.
D、Indifferent.
答案B
解析 根据题干关键词定位到全文。全文主要围绕“人工智能的未来”展开论述。第一段开篇点题，指出许多科技行业的巨头正在进行一场“平台之战”。中间阐述了“平台”的含义及他们所做的努力。最后一段借市场调研公司IDC的估计和负责谷歌人工智能开发的计算机科学家杰夫.迪恩的话，表明人工智能的前景是光明的，软件会得到普及，机器学习将用于各行各业。故B项为正确答案。A项“消极的”、C项“不清楚的”和D项“漠不关心的”均不符合题意，故排除。
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