putting all those things together, if you looked at this question again we'd get 100% on it, 0 9 that our only option here is 0. 9, and that it's not the negative, it's the positive version, because we're talking about how much energy we have to put into the system in order to eject an electron.

把这些放在一起，你们再看一下题目,大家100%都能选对，我们唯一的选择就是这个，它不是负数，它是正的，因为我们说的，是要,把电子激发出来,需要提供的能量。

麻省理工公开课 - 化学原理课程节选

There will be--here's another example of a different kind of article where when you click on the click here for full text option, you get something that looks a little bit different.

再举另外一种文章的例子,当你们点击选择全文时,会看到一些不一样的东西

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选