She says this study has helped by collecting the data, and now the need is clear to work to better protect children.
VOA: standard.2010.06.29
This is from a classic study by Tolman where rats were taught to run a maze.
这是托尔曼的经典实验,训练白鼠走迷津。
And people who study this often claim to be studying neural network modeling to try to build smart machines by modeling them after brains.
神经网络的研究者们,通常会说他们是在研究神经网络模型,试图通过模仿大脑反应,而制造出智能机器
This is a study done by National System of Educational Progress.
这项研究,是由国家教育发展组织所做的。
By the way, here's where the average error is in this particular study.
顺便一提,这是这个实验的平均误差值
So tens or hundreds of millions of dollars would go into a study like this by the time it was completed, money that could have been used for other things, to test whether eating a low fat diet would reduce risk for breast cancer.
数以百万计的美元,投入到这样的研究,当研究结束时,本可以用来做其他事情的钱,被用来检测是否低脂膳食,可降低患乳腺癌风险
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