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What began with the invention of the telephone in 1876 has today become a global net of cables, satellites, transmitters, and re
What began with the invention of the telephone in 1876 has today become a global net of cables, satellites, transmitters, and re
admin
2015-09-30
24
问题
What began with the invention of the telephone in 1876 has today become a global net of cables, satellites, transmitters, and receivers that enables half the population of the planet to exchange works, data, and images in seconds. It could take less than 25 years more to give the other half of the world’s people this same power.
The unified global telecommunications system, which is called "the Meganet", represents the greatest construction project ever undertaken. If present tren is continue, by early in the 21st century the Meganet will link every computer terminal, fax machine, databank, and telephone instrument on earth
Unlike its anarchic (无政府主义的) cousin the Internet, which evolved from free interaction among interest groups of computer users, the Meganet of local telephone service, long-distance lines, communications satellites, and mobile relays has been planned, constructed, regulated and largely sponsored by governments and for-profit business interests. As new materials and technologies bring reliable voice and data links to formerly isolated or closed communities, political and economic power struggles grow.
The Meganet breaks long-established patterns of social identity and responsibility. Where private individuals have uncensored access to global information sources, local standards of legality or decency become difficult even to set, let alone to enforce. Economic values may shift, too. Public utility companies have long supplied electric power over miles of high-tension lines, or pumped water through underground pipelines into thousands of homes. Now they are finding that their power-line rights-of-way and physical into-home connections let them compete with cable TV and phone companies to supply information services as well.
Meganet impacts are often double-edged for finance and business, too. New York’s Wall Street district lost 20% of its work force—some 100 000 jobs—in less than a decade, as computers took over tasks once performed by clerks and banks did more of their business by phone transfers and automated teller machines.
Meganet is changing human life largely because______.
选项
A、the individuals are able to link to the global information sources without any control
B、people accept the standards of legality consciously
C、it is not necessary to set some standards of decency
D、lots of people needn’t work any more
答案
A
解析
细节题。文章的第四段指出,Meganet改变了长期以来建立的社会特性与责任的模式。这主要是因为人们可以随意登录全球信息网而无须任何检查。这种随意性使得原有的特性和责任都发生了改变。所以选A。
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