They do extremely well on the first test and conclude that chemistry is in the bank and they can focus on the other subjects.

它们在首次考试中取得了好成绩,总的来说化学是根基,他们可以在其他事情上投入精力。

麻省理工公开课 - 固态化学导论课程节选

It depends on the class, like, organic chemistry, for instance, is always open book, open notes.

这要看是什么科目，例如说有机化学总是开卷考试，可以看笔记。

考试应该这么准备 - SpeakingMax英语口语达人