Revenue from FORTUNE 500 companies as a proportion of GDP has risen from 39 percent in 1955 to 73.4 percent this year.One reason for that is the increased overseas exposure of America's largest companies; revenues booked abroad show up on U.S. income statements. In the next generation, ...
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Banks, companies, and government agencies use secret codes in doing business, especially when information is sent by computer. People have used secret codes for thousands of years. 36 Code breaking never lags(落后) far behind code making. The science of creating and reading coded messages is ...