So, I know this is a simple example and I can see everyone pretty much got it right, and probably those that didn't actually made some sort of clicker error is my guess.

分别是质子和电子,我知道这是个很简单的问题，你们大部分人都做对了,我猜那些没做对的大概是因为点错了。

麻省理工公开课 - 化学原理课程节选

Now, whoever guessed it was a pop tart was correct, that's what it happened to be so you get extra credit for that.

那些猜是果酱馅饼的人猜对了,就是这种食品,猜对的人可以获得额外加分

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Okay. Kit-Kat bar, you're right and one more.

对,奇巧威化,大家猜对了,再来一个

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选