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在商品生产过程中,具体劳动的作用是A.创造新价值B.创造剩余价值C.创造必要价值
甲状腺内孤立的、无触痛性、不规则的硬结节最可能的是A.结节性甲状腺肿B.急性甲状
西方教育社会学的创始人是近代法国著名的社会学家和教育家()。A.爱尔维修B.拉夏
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亚太经合组织第12次领导人非正式会议2004年11月21日在智利首都圣地亚哥发表
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民国时期,我国的科学技术也取得重要成就,其中有______。①华罗庚著的《堆垒素
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______是我国社会主义经济制度的基础。A.市场经济B.股份制经济C.公有制为
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下列哪项不是眩晕肝阳上亢证的主症()A.头痛B.面赤C.烦躁D.呕吐
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The term "disruptive technology" is popular, but is widely misuseD、It refers not simply to a clever new technology, but to one that undermines an existing technology-and which therefore makes life very difficult for the many businesses which depend on the existing way of doing things. Twenty years ago, the personal computer was a classic example. It swept aside an older mainframe-based style of computing, and eventually brought IBM, one of the world’s mightiest firms at the time, to its knees. This week has been a coming-out party of sorts for another disruptive technology, "voice over internet protocol" (VOIP), which promises to be even more disruptive, and of even greater benefit to consumers, than personal computers. VOIP’s leading proponent is Skype, a small firm whose software allows people to make free calls to other Skype users over the internet, and very cheap calls to traditional telephones-all of which spells trouble for incumbent telecoms operators. On September 12th, eBay, the leading online auction-house, announced that it was buying Skype for $2.6 billion, plus an additional $1.5 billion if Skype hits certain performance targets in coming years. This seems a vast sum to pay for a company that has only $60m in revenues and has yet to turn a profit. Yet eBay was not the only company interested in buying Skype. Microsoft, Yahoo!, NewsCorporation and Google were all said to have also considered the ideA、Perhaps eBay, rather like some over-excited bidder in one of its own auctions, has paid too much. The company says it plans to use Skype’s technology to make it easier for buyers and sellers to communicate, and to offer new "click to call" advertisements, but many analysts are sceptical that eBay is the best owner of Skype. Whatever the merits of the deal, however, the fuss over Skype in recent weeks has highlighted the significance of VOIP, and the enormous threat it poses to incumbent telecoms operators. For the rise of Skype and other VOIP services means nothing less than the death of the traditional telephone business, established over a century ago. Skype is merely the most visible manifestation of a dramatic shift in the telecoms industry, as voice calling becomes just another data service delivered via high-speed internet connections. Skype, which has over 54m users, has received the most attention, but other firms routing calls partially or entirely over the internet have also signed up millions of customers. |
“证券市场是经济晴雨表”是因为()。A.证券市场走势滞后于经济周期B.证券市场走
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