2. 外语
  3. The process of dividing members of the population into homogeneous subgroups before sampling is______.

The process of dividing members of the population into homogeneous subgroups before sampling is______.

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问题 The process of dividing members of the population into homogeneous subgroups before sampling is______.
选项 A、random sampling
B、stratified sampling
C、systematic sampling
D、simple sampling
答案C
解析
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专业英语八级

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