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Who was Stanley Kaplan? Did he A) start a test preparation company, B) start the test preparation industry, or C) die last month at age ninety?
VOA: special.2009.09.17
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Is it--This is number two. Is it A or B?
这个,这个是第二条了,甲还是乙
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For two, is it A or B?
第二条,是甲还是乙呢
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Y He's not returning A or B or temp, and definitely not X or Y; so he just did all of this work and yet that's it.
他不会返回A或B或temp，肯定也不是X或;,所以他刚才做了所有的工作，就是那样。
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The typical vector is called V or A or B something with an arrow on it.
表示矢量时一般在,字母 V,A 或者 B,上面加个箭头
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In the years of the Mycenaean period, roughly from 1600 to 1100 or so B.C., you are dealing with a largely unified culture.
在大约公元前一千六百年,至公元前一千一百年,迈锡尼文明时期,你将看到一个高度统一的文化
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Fifty, 55% of you or so are likely to end up with some kind of a B.
二分之一左右的人以80分结课。
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That's common sense. This is part of your DNA, And then their final product is an object, a b which ends up at a temperature or a warmness which is in between the hot and the cold.
这是常识，是你的一部分，它们的最终产物是一个物体，其温度或温暖程度,介于热与,冷之间。
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So if you could make a hepatitis B vaccine that didn't require a shot or that didn't require refrigeration, that would be a tremendous advance in spreading that vaccine through the world.
所以如果你可以开发出这样的乙肝疫苗,它不需注射就能接种,或者不需要冷藏,这样的巨大进步,能够将疫苗的使用普及至全世界
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Because the B+ or A- people, B- you know it, they'll hire B's and B minuses.
原本想要B+或者A-的人，实际能力评分只有B或者。
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Does it go in the path of A, or does it go in the path of B?
是沿A路线飞出,还是沿B路线飞出
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And what we say when we talk about the delta energy is I E 2 that this is going to be equal to i e 2, or the second ionization energy, or we could say the negative of the binding energy of a 2 s electron in b plus.
那么我们说,Δ，E，应该等于，或者说第二电离能，也就是正一价硼中，2，s，电子的,束缚能的负值。
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Look, you're smart enough probably most of you to pull off some sort of B without breaking into a sweat, or at least not a significant sweat.
听着，你们也许足够聪明大多数人,最终不费力的得到80分，或是至少花点功夫。
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Please choose a rhythm for excerpt one you can choose rhythm A which is or you could choose rhythm B So I'm about to play a piece. It's by Chopin.
请选一个和你听到的相符的节奏,你可以选节奏甲,也可以选节奏乙,我现在要弹一段,肖邦的曲子
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Is it A or is it B?
甲还是乙呢
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No. Because A and B and even temp they were by nature local or temporary variables.
不会，因为a和b还有temp，他们是局部的,临时的变量。
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So they're the same shape, this is the shape of the orbital or the shape of the wave function, and we can call this either 2 p x a being combined with 2 p x b, or we could say since it's the same shape, it's 2 p y a being combined with 2 p y b.
它们形状是一样的，这是轨道的形状或者波函数的形状，我们叫它2pxa和2pxb结合，或者我们说因为它们的形状是一样的，它是2pya和2pyb结合。
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pxa So what happens when we add a 2 p a and we subtract from it a 2 p x b, or the same with a 2 p y a subtracting a 2 p y b, is that we're actually going to cancel out the wave function in the center, so we now have 2 nodal planes.
当我们用,减去2pxb时，或者是2pya减去2pyb时，我们会消去,中间的波函数，所以现在我们有两个节面。
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So, either stimulates the production of-- and differentiation of B-cells, to produce a specific antibody that can neutralize the virus, or stimulates the production of cytotoxic T-cells that can kill infected cells within your body.
所以,疫苗的刺激要么能够,促进B淋巴细胞产生和分化,以生成特定的抗体来杀灭病毒,要么刺激T细胞释放细胞毒素,杀死身体里被感染的细胞
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