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I talked a lot about the exam so I don't have a lot of time left to talk about the structural metals.
我说了很多关于考试的东西,所以没多少时间,讨论结构金属。
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For example, let's pretend that you are speaking with a friend who had been studying for a test for some time.
例如，我们假设你跟一位朋友在聊天，他已经为一门考试复习了好一段时间。
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So I was hoping to see more like 99% on this, but you do still have two more days before the exam.
我本来期待这道题的正确率能达到，99%，的，但毕竟你们距离考试还有两天的时间。
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Because there will not be time to look at that code for the first time during the quiz, and figure out what it's doing.
因为在考试中,是没有时间去第一次看代码，并弄懂它的意思的。
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But usually, if you are not able to work out something in terms of taking the exam at a different time,
不过通常情况下，你不太可能被允许换个时间参加考试，
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for example, in the exams I take time to like figure out what words I want to use
比如说，考试的时候我要费时间想我要用哪个词，
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Grading - 30% of the grade is for the mid-term, 30% for the final, and the final is not cumulative, the final covers only things for the last half of the course, so it's really just like a - covers half the course but it's given during the final exam period.
关于分数,总分的百分之三十来自于期中考试,百分之三十来自期末考试,期末考试并不包括学期的全部内容,只涵盖后半学期的课程,这真的像中期考,但在期末考试时间段里进行
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So that way you can have an idea if, oh, I do really understand this but I'm a little bit slow, maybe I need to practice this one type of problem a little bit longer so I can get up to speed so I'm going to be able to get through all this in terms of the exam time.
这样你就可以知道，假设，噢，我真的懂这个，但是我的速度有点慢，或许我需要在练习这个类型的题目上,多花一点时间,这样我就可以提高自己的速度,可以全部做完,在考试规定的时间内。
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if you don't want to use that, you can also derive it as we did every time, it should intuitively make sense how we got there. But the exams are pretty short, so we don't want you doing that every time, so we'll save the 2 minutes and give you the equations directly, but it's still important to know how to use them.
吸收的和发射的，如果你不想用公式,你也可以每次都向我们这样推导它,很直观的就能得到结果，但考试时间很短，我们不希望你们每次都推导,所以我们会直告诉你，让你节省2分钟，但知道如何应用它十分重要。
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And your TAs on Tuesday are going to share a lot of other types of sort of exam strategies in thinking about how you can approach an exam when we're in a time situation like we are, so they'll share some of their experience with you in terms of taking these timed exams.
你们的助教们也会在下周二跟大家分享,很多考试技巧,主要是关于如何应对,像我们这样有时间要求的考试，因此他们将分享一些他们的一些经验,关于参加限时考试的。
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it's very hard for the professors to schedule a lot of individual time for the people who can't make it.
教授很难为那些没法按时考试的考生另外安排时间。
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So this is going to tell you pretty much everything you need to know in terms of getting ready for the exam, which is next Wednesday.
这上面包括了几乎,所有的你需要知道的,关于如何准备这次考试的信息，考试时间是下周三。
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So, today we're going to introduce the chemistry topics, which we will cover in 5.111, and give you general information, practical information about the course number of points you need, when the exams are, that kind of thing, policies, and introduce you to the teaching staff.
今天，我们将向你们介绍这门课会涉及的化学问题，并告诉你们一些基本信息和实用信息，像你需要的课程分数,考试时间，课程政策，以及授课教师。
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