题目内容
The number of bits that can travel simultaneously down a bus is known as the bus _____.
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_____ ports are the standard high-speed networking ports for many of today's computers.
_____ ports are a special type of port for connecting musical instruments to a sound card.
_____ ports provide high-speed connections for external disk drives, optical disks, and other large secondary storage devices.
_____ ports provide high-speed connections that can connect up to seven separate devices connected one to another.
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