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偶遇抽样
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accidental sampling
偶遇抽样
研究者根据实际情况,为方便开展工作,选择偶然遇到的人作为调查对象,或者仅选择离得最近、最容易找到的人作为调查对象,又称便利抽样。
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Adult Education Regulation
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adulthood
adult onset Still's disease
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adult's dictionary
adult stem cell
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advanced adiabatic compressed air energy storage
Advanced Ancient Chinese Grammar
advanced ballistic reentry system program
advanced ballistic re-entry vehicle
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Advanced Communication Technology Satellite
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