单项选择题

Every valid character in a computer that uses even ( ) must always have an even number of 1 bits.（）

A.parity
B.check
C.test
D.compare

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单项选择题

（） :A location where data can be temporarily stored.

A.Area
B.Disk
C.Buffer
D.File

单项选择题

（）:The process ofidentifying and correcting errors in a program.

A.Debug
B.Bug
C.Fault
D.Default

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