, the brains of a computer, it contains the ALU, the clock, many registers, the bus interface, and circuitry that makes these pans work together.

A．I/O device

B．CPU

C．Memory

D．Operating system

[单选题]A． complete computer system contains(74)。A．arithmetic unit, control unit and memoryB．input/output devices and mainframeC．mainframe. and programs of utilityD．hardware system and software system

[试题]E．lectronic brains can reduce the profusion of dead ends______(involve)in vital research.

[单选题]A． ______ computer is a personal computer whose hardware is capable of using any or all of the following media in a program, text, graphics, video and animation.A．databaseB．multimediaC．networkD．mainframes

[单选题]A computer virus is a computer program that is created to make and spread (72) of itself.(72) A．programsB．virusC．copiesD．files

[单选题](An overall cellular network contains a number of different elements from the base transceiver station (BTS) itself with its antenna back through a base station controller (BSC), and a mobile switching centre (MSC) to the location registers (HLR and

[单选题]( 72) is a file that contains metadata-that is, data about data.(72) A. documentB． Excel tableC． databaseD． data dictionary

[单选题]A． data( )is a file that contains metadata—that is，data about data.A．structureB．tableC．baseD．dictionary

[试题]A management domain typically contains a large amount of management information. Each individual item of( 71)information is an instance of a managed object type. The definition of a related set of managed (72) types is contained in a Management Inform

[单选题]A (72) is a file that contains metadata—that is，data about data.(72)A．documentB．Excel tableC． databaseD．data dictionary

[单选题]The cylinder contains a great weight of air and is capable of burning a great quantity of fuel at（）.A . the beginning of the compression strokeB . the beginning of the suction strokeC . the end of the working strokeD . the end of the exhaust stroke