单项选择题

A．operative
B．active
C．executable
D．processing
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单项选择题
Computer______is a complex consisting of two or more connected computing units.it is used for the purpose of data communication and resource sharing.
A．storage
B．device
C．network
D．processor
单项选择题
A．ISO 9000—3B．ISO 9004—4C．ISO 9001D．ISO 8402
A．ISO 9000—3
B．ISO 9004—4
C．ISO 9001
D．ISO 8402
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