搜题

问题更新时间2023/4/3 12:59:00

类型随机分类抽样在对总体进行分类时，其分类方法的科学性主要表现在（）。

A.分类的样本的科学性
B.分类必须依据互斥性原则
C.分类标志选择的科学性
D.分类必须依据互斥性原则和完备性原则

答案

参考答案：CD

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