Who was Stanley Kaplan? Did he A) start a test preparation company, B) start the test preparation industry, or C) die last month at age ninety?

VOA: special.2009.09.17

And I think you can test that by asking the question: if you could educate a child by the age of six.

你们可以通过,问这个问题来验证：,你能教育6岁的孩子吗。

麻省理工公开课 - 媒体、教育、市场课程节选

And I think you can test that by asking the question: if you could educate a child by the age of six.

你们可以通过,问这个问题来验证：,你能教育6岁的孩子吗。

麻省理工公开课 - 媒体、教育、市场课程节选