For the first time, scientists around the world had a limitless number of cells they could use to test the effects of diseases, medicines and chemicals.

VOA: special.2010.07.21

Well, let's do the smoke test number one: is the mean more or less what we expected?

好了，让我们先做1号发烟测试：,这个平均值是和我们想要的答案差不多吗？

麻省理工公开课 - 计算机科学及编程导论课程节选

Well, let's do the smoke test number one: is the mean more or less what we expected?

好了，让我们先做1号发烟测试：,这个平均值是和我们想要的答案差不多吗？

麻省理工公开课 - 计算机科学及编程导论课程节选