表3显示了每门db2考试有多少道题，要通过考试需要答对多少道题，以及每门考试的时间。

Table 3 shows how many questions are on each DB2 exam, how many you need to correctly answer to pass, and how long you have to take the exams.

youdao

根据每周上课时间表，共有14份作业题组，虽然最后一份作业无法让学生稍后再来领取。

There will be 14 problem sets, corresponding to a weekly schedule, though the final problem set will not be collected.

youdao

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