题目内容
_______ printers are printers connected to the Internet that provide printing services to others on the Internet.
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_______ are special-purpose printers that use output from graphics tablets or other graphical input devices that are typically found in architectural and engineering environments.
_______ is the VoIP application that uses the Internet rather than traditional telephone lines for receiving and sending voice communication over the Internet.
_______ combine(s) the capabilities of a scanner, printer, fax, and copy machine.
_______ is the set of standards or technologies that support transmission of voice and other types of communication over the Internet.
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