英语词汇“double dummy”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	double dummy
释义	double dummy double dummy A technique for retaining the blinding of a clinical trial, where the two treatments cannot be made identical. Supplies are prepared for Treatment A (active and indistinguishable placebo) and for Treatment B (active and indistinguishable placebo); subjects then take two sets of treatment, either A (active) and B (placebo), or A (placebo) and B (active).
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英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。