试题与答案

As an operating system repeatedly allocate

题型:单项选择题

题目:

As an operating system repeatedly allocates and frees storage space, many physically separated unused areas appear. This phenomenon is called().

A.fragmentation

B.compaction

C.swapping

D.paging

答案:

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参考答案:D解析:记账凭证应符合下列要求:①应对记账凭证进行连续编号;②记账凭证根据每一张原始凭证或若干张同类原始凭证汇总填制;③记账凭证必须附原始凭证(结账和更正的例外),并注明张数;④与其他单位核...

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