A famous mathematician once said "Every question must have a correct answer " for every question one answer."

一位著名的数学家曾说过,“每一个问题都必定有一个正确的答案,每一个人们所回答的问题“

耶鲁公开课 - 政治哲学导论课程节选

Okay these--you guys are all right, everything that I heard was a correct answer.

很好 这些原因--你们说的都很对,我听到的每一个答案都是正确答案

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

We now have 77% getting the correct answer, for a very similar question , we only had about 30-something percent on Friday.

我们有77%的同学%,回答正确了，上周五和这类似的问题，只有大概30%左右答对了。

麻省理工公开课 - 化学原理课程节选

That's correct. So her answer was, if it was a full parabola, then we know it would've been at the ground before I set my clock to 0.

她说,如果运动轨迹为一条完整的抛物线,那么它在我们所设定的零时刻之前,就已经落地了

耶鲁公开课 - 基础物理课程节选

And also that we know that the zero does not count as a node, if per se I actually had managed to hit zero in drawing that, so the correct answer would be the bottom one there.

另外你们要知道零点不是节点，假设说我确实把零点画成０了，那正确的结果就是底下这个。

麻省理工公开课 - 化学原理课程节选