题目内容

Insufficien_____can cause a processor to work at 50% or even more below its performancepotential.

A. Mouse
B. I/O
C. document
D. memory

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The usual address for a Web site is the page address, although you can enter _____________.

A. home
B. main
C. host
D. house

______:The phosphorescent surface on which an image is displayed, as on a television, computer monitor, or radar receiver.

____: A program that observes, supervises, or controls the activities of other programs.

____: The smallest image-forming unit of a video display.

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