2. 外语
  3. Between now and 2005, 【C1】______ services will become commonplace. Business and economy-ties? Web services will be introduced; a

Between now and 2005, 【C1】______ services will become commonplace. Business and economy-ties? Web services will be introduced; a

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问题 Between now and 2005, 【C1】______ services will become commonplace. Business and economy-ties? Web services will be introduced; and consumers will 【C2】______ their digital identities. Not only will the Net support a variety of new access devices, but it will also become the primary vehicle for voice, data and video 【C3】______ . Already, a group of communication giants, including AT＆T, 【C4】______ an alliance called Embedded Internet, which aims to accelerate the market for globally networked, intelligent devices in homes, offices and factories worldwide.
Putting everything and everyone on the Net will open up new commercial opportunities For example, when you visit a new place, your mobile device, knowing your preferences will 【C5】______  suggest the restaurants that serve your favorite wines and foods, list the shows you might like to see, then provide you with maps for how to get there, says Joy, whose company is designing Jini, a 【C6】______ system to automatically link computing devices. The new services electronically link up buyers and sellers who 【C7】______ no prior contact and may want to do business with each other only once.
These 【C8】______ will take bandwidth and lots of it. Some of the sector’s biggest companies are working on making the internet 1,000 times faster and more reliable. Internet service providers will charge accordingly, just as travelers pay different 【C9】______ for first or second class. The system is supposed to give consumers flexibility, allowing them to 【C10】______ bandwidth when they need it.  
【C7】______
选项 A、had
B、have had
C、had had
D、have
答案B
解析
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