象这种研究,百分之十几的改变有意义吗?“participants filled out surveys every FOUR YEARS about what they ate and how much”,我连上个礼拜吃什么都没印象了,要是SURVEY, 就是随便选。
象这种研究,百分之十几的改变有意义吗?“participants filled out surveys every FOUR YEARS about what they ate and how much”,我连上个礼拜吃什么都没印象了,要是SURVEY, 就是随便选。
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