- UID
- 603884
- 在线时间
- 小时
- 注册时间
- 2011-2-9
- 最后登录
- 1970-1-1
- 主题
- 帖子
- 性别
- 保密
|
Half of the subjects in an experiment--the experimental group--consumed large quantities of a popular artificial sweetener. Afterward, this group showed lower cognitive abilities than did the other half of the subjects--the control group--who did not consume the sweetener. The detrimental effects were attributed to an amino acid that is one of the sweetener's principal constituents.
Which of the following, if true, would best support the conclusion that some ingredient of the sweetener was responsible for the experimental results?
((D) The two groups of subjects were evenly matched with regard to cognitive abilities prior to the experiment.
谁能帮忙翻译一下D的意思，谢谢~ |
|
京公网安备11010202008513号 京ICP证101109号 京ICP备12012021号
发表于 2011-8-1 07:19:46
收藏
收藏
求翻译。