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A(n)_____ is a device that connects multiple computers into a network,repeating the message to all connected machines.
Economy Sector
A segment of the economy, often categorized into primary (raw materials), secondary (manufacturing), tertiary (services), and quaternary (information) sectors.
Permanent Underclass
A portion of society that finds itself at the very bottom of the social class ladder, underneath the primary segment of the working class.
U.S. Population
The total number of people living in the United States at a given time.
Healthcare Spending
The total amount of money spent on healthcare services and products within a country over a specified period.
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