问题
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
答案
参考答案：A
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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
参考答案：A