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【单选题】
相关关系与函数关系两者之间的联系体现在( )A.
相关关系普遍存在,函数关系是相关关系的特例
B.
函数关系普遍存在,相关关系是函数关系的特例
C.
相关关系与函数关系是两种完全独立的现象
D.
相关关系与函数关系没有区别
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A.
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B.
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C.
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D.
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B.
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