The other thing you will find on the website are old homeworks, old exams, all sorts of resources, and they are videotaping this.

另一件你们能在网站上发现的是,以前的作业，以前的试题，各种的资源，他们正在这拍摄。

麻省理工公开课 - 固态化学导论课程节选

We're also posting a practice exam for you to take, so after you're completely done your studying, it's good to have everything done before you take the practice exam, and then sit down just with this sheet here and your calculator, and ideally a timer, and make sure you can do the practice exam in the allotted amount of time.

我们还将给出一份模拟试题，因此在你完全复习好之后，最好先复习完,再做这份模拟试题，坐下来,只拿出这张表与计算器，最好还有个计时器，确保自己完成模拟题,在规定的时间内。

麻省理工公开课 - 化学原理课程节选