Animal welfare activists argue that subjecting chimpanzees to painful,and often lethal, experiments is cruel and inhumane.

VOA: standard.2010.02.16

we thought about using juice, the kinds of stimuli that you would use in animal experiments.

我们想过使用果汁，这种刺激物也会在动物试验中使用。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

we thought about using juice, the kinds of stimuli that you would use in animal experiments.

我们想过使用果汁，这种刺激物也会在动物试验中使用。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选