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单选题
系统由相互关联的部件组合在一起，执行一个特定的功能。
A
A system consists of related components used to perform a specific function.
B
A system is a combination of interrelated components arranged to perform a specific function.
C
A system is combined with relevant components that perform a specific function.
答案解析
正确答案：B
相关知识点：
系统由关联部件执行功能
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