問題詳情
【題組】38.How were the data collected from the study group?
(A) The researchers gave food questionnaires to the group.
(B) The researchers asked the study group to keep a food dairy.
(C) The researchers asked the study group to remember the food they ate yesterday.
(D) The researchers led a study of heart problems.
參考答案
答案：A
難度：計算中-1
書單：沒有書單，新增
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