通过对配对的功能和疑点进行深入的分析，为我国开展该项研究的样本设计方面提出建设性的思路。
The paper draws a deep analysis of match-sample on the function and doubtful points and supply some constructive advices in the sample design.
通过对配对的功能和疑点进行深入的分析，为我国开展该项研究的样本设计方面提出建设性的思路。
The paper draws a deep analysis of match-sample on the function and doubtful points and supply some constructive advices in the sample design.
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