These students are taking part in experiments designed to test their knowledge and inspire them to concentrate on science,technology, engineering and math.

VOA: standard.2010.05.10

Imagine you have a math test and this is the front of the math test.

假设要做一个数学测试,这是数学测试卷的正面。

耶鲁公开课 - 心理学导论课程节选

Imagine you have a math test and this is the front of the math test.

假设要做一个数学测试,这是数学测试卷的正面。

耶鲁公开课 - 心理学导论课程节选