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The method combines an examination by positron emission tomography with a drug that lights up beta-amyloid.
VOA: special.2011.02.08
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Is that a Beta right there? Are you a Beta right there?
那有人选β对吗,你是不是选了β
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You were a Beta right? You backed off the Beta, okay.
你选过β对吗?,哦,你改变主意了
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"This past year, I was a visiting scholar for the Phi Beta Kappa Society and went to small liberal arts colleges in the United States, and not only gave public lectures about science, but also research lectures, and then also spoke with women about the importance of bringing their intellectual force, which is formidable, to the scientific arena in the future."
VOA: standard.2010.03.29
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The promoter in this case is called the lac promoter and normally in micro-organisms that lac promoter is used to produce a gene called lacZ which makes a protein called beta-galactosidase.
在这个例子中的启动子称作lac启动子,通常在微生物中,lac启动子是用来生成,一段叫lacZ的基因,这段基因,能制造一种蛋白叫β-半乳糖苷酶
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We'll come back to this, but beta of the stock is a measure of how much it moves with the market and the alpha of a stock is how much it outperforms the market.
回到原先的话题,beta用以衡量,本公司跟随市场变化的程度,alpha衡量超过市场的表现
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But thankfully I also found in my trolling around this morning,something that is perhaps technically motivating and at least remains for those of you which is many of you who actually use Gmail, you might have seen a little advert in the top right hand corner recently saying new beta version of a little something called Gmail Priority Inbox.
幸运的是我今天早上在网上闲逛的时候,发现了一些东西,一些对还在使用Gmail的人来说,可能在技术上有吸引力的东西，你可能已经看到,其右上方有个广告说的是,新版本Gmail优先收件箱发布了。
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So how can I get a mike into a Beta?
能不能把麦克风给一位选了β的同学
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Oh come on! There was a Beta right here.
之前这里有选β的啊
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All right, there's a Beta here, okay.
这里有一个选β的
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If I put Alpha and she put a Beta, I got an A, and if I put Beta and she put an Alpha, I got a C.
如果我选α她选β 我得A,如果我选β她选α 那么我得C
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Conversely, if I chose a Beta and my pair chooses an Alpha, so I end up with a C and she ends up with an A, then you know I have a bad time explaining to my parents why I got a C in this class, and I have to say about how I'm going to be president anyway.
相反如果我选β我对手选α,我得到C她得到了A,我回家后很难跟父母,解释为什么我只得到了C,然后我还得表示下雄心壮志
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Let's talk to the Beta's a second; let me just emphasize at this stage there are no wrong answers.
我们先来讨论一下选β的理由,我要强调一下这里没有错误的答案
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So it looks like a lot of - well we're going to find out, we're going to count--but a lot more Alpha's than Beta's.
我们来数一下,确认一下,选α的人要远远多于选β
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Roughly, almost a third choose Beta.
差不多三分之一的人选β
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But if I choose Alpha and my pair chooses Beta, I get an A and she gets a C.
要是我选α我对手选β,我得A 她得C
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If we both put Beta, then we both get a B+; in particular, my pair gets a B+.
如果我们都选β 我们都会得到B+,此情况下,我对手得B+
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If you put Beta and you're paired with Alpha, you'll get a C and your pair an A.
如果你选β你对手选α,你得C你对手得A
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And if I put Beta and she puts Alpha, then she gets an A.
如果我选β她选α 那么她得A
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We mean that if these are your payoffs, no matter what your pair does, you attain a higher payoff from choosing Alpha, than you do from choosing Beta.
我们说如果这是你的收益,那么不论你的对手选什么,你选择α总会比选择β,得到更好的收益
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If I put Alpha and my pair puts Beta, then she gets a C.
如果我选α我对手选β,那么她得C
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So, for example, if you had chosen Beta and your pair had chosen Alpha, then you would get a C and your pair would get an A.
比如说你选了β而你的对手选了α,你会得到C而你的对手会得到A
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But if we both reasoned a different way and chose Beta, then we'll both get 1.
但是如果我们都换个想法去选β,那我们就都得到1单位效用
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Let's have a show of hands on the Beta's again.
选β的请再举下手
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What I'm gonna do is draw a larger table, the same basic structure: I'm choosing Alpha and Beta on the rows, my pair is choosing Alpha and Beta on the columns, but now I'm going to put both grades in.
我要画个结构相同的大表格,用列来表示我选α还是β,用行来表示我对手选α还是β,但我要把两人成绩写在一个单元格里
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I mean if you chose Alpha, you're swinging from A to B-; and from Beta, swinging from B+ to C.
要是你选α,你的分数会在A到B-,选β,分数范围会在B+到C
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Well they won't be, If you put Alpha and you're paired with Beta, then you will get an A and your pair a C.
纯属娱乐,大家别当真,如果你选α而你对手选β,那么你得A你对手得C
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