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单选题
Those units and components are used for recording data not related to specific systems.
A
Those units and components are used to keep account of data that is unrelated to a particular system.
B
The purpose of those units and components is to obtain values that are independent of a particular system.
C
The function of these units and components is to save the files that have nothing to do with a peculiar system.
答案解析
正确答案：A
相关知识点：
记录特定系统无关数据考点
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