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DESIGN: a randomized single blind controlled observation.
设计:随机单盲对照观察。
youdao
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DESIGN:A randomized controlled single blind study.
设计:采用随机对照单盲实验研究。
youdao
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Design: Randomized, controlled, single blind trial design.
设计:随机对照单盲的实验研究。
youdao
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Design: Randomized, controlled, single blind trial design.
设计:随机对照单盲的实验研究。
youdao