英语词汇“comparative study”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	comparative study
释义	comparative study comparative study A clinical trial in which the investigative drug is compared against a placebo or another active drug.
随便看	air pollution distance learning network air pollution emission experiments and policy air pollution emission notice air pollution emissions report air pollution exchange air pollution index air pollution information network for africa air-pollution measures air pollution monitoring station air pollution prevention and control division air pollution prevention forum air pollution prevention plan air pollution research advisory committee air pollution research database air pollution research group air pollution research in london air pollution technical information center air pollution training institute air pores airporgt air port airport air portable airport acceptance rate airport access authorization to commercial establishments

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。