It gives you a lot of expressive convenience, you can write the programs much more cleanly, but most importantly, it's fast.
你可以把一些程序写的更清楚,最重要的是,它的效率非常高。
And so it's usually the case that you can get a higher return if you're willing to take more risk.
同样很常见的例子是,所以如果你愿意冒高风险,你可能就会有高回报。
So do you think noble gases would have a high positive electron affinity, a low positive, or negative electron affinity?
那么,你认为稀有气体的电子亲和能,应该是一个高的正值,一个低的正值,还是一个负值?
You can see that I'm saying about fifteen-- fifteen times earnings is typical, but we're in a high price-to-earnings scenario now.
你可以看出我提到的15这个数字,收益的15倍是最有代表性的,但我们现在正处于一个高市盈率的时期
You can see low voltage, low energy, high voltage, high energy. It is a linear function.
你会看到,低电压,低能量,高电压,高能量,这是种线性关系。
Or,for example,let's say you're Cher and you're getting in to your early sixties and you really can't hit that high note anymore; you can get electronically that particular sound to be enhanced.
或者,例如,让我们说你是雪儿和你回到六十年代初期,而你真的弹不出那么高的音;,你可以通过特定的电子声音来加强。
So, for example, if you're the kind of person, which is I have to say all I ever was, if you're the kind of person who can kick the ball fairly hard but not very accurately, then it actually might change these numbers.
比如你是这样的一种人,我也不得不承认我以前也是这种人,如果你是那种能够大力抽射,但是精准度不高的人,那这些数据对你就不太准了
The way these things work, when you are engaged in agriculture, it's natural to go first to that soil, to that patch of land which is known to be likely to produce the best land, the most fertile, the best product, the most fertile land there is.
这一方式是这样运作的,当你从事农业,你自然而然的会首先关注土壤因素,去找出已知土地中最为肥沃的那一块,土地越肥沃,产量越高,就越追求更为肥沃的土地
I mean, you certainly could make a fortune buying them I mean, I'm certainly not telling you it's not going to work, but I think it's all risk-reward.
我的意思是,你很可能会通过它们赚很多钱,我是说,我肯定不会告诉你说,那一点也行不通,但我觉得高风险才有高回报。
But ultimately, everyone agrees I-- that's the premise here, that for the-- if you're comparing two portfolios with the same variance, then you want the one with the higher expected return.
但归根结底大家都会同意这一点-,这是一个前提-,当你比较两个有相同方差的投资组合时,你会选择预期收益率高的那一个。
Something I'll also point out as you see these dashed line that tell you where the individual molecular orbitals are arising from, as you get to higher and higher atomic numbers of molecules that you're making, it makes a lot more sense to look at a diagram when you draw these dotted lines in, because they can start to get a little bit confusing.
我要指出的是,你们看这些虚线,它们告诉你,每个分子轨道的起源是什么,当你的原子数,越来越高的时候,画出这些点线,使图更容易理解,因为现在开始变得有一点混乱了。
The answer is generally not because if you buy the stock before it goes ex-dividend, you get--you have to pay a higher price, but you get the dividend.
答案一般来说是不用,如果你买了股票,是在除息之前买的,你的买入价高,但能分到红
You see the radius is high and then it falls.
你看到半径是高的,然后下降。
And hybrid orbitals are all going to be completely equal, and lower in energy than the p orbital.
杂化轨道是完全相等的,你会注意到它们的能量比s轨道高,比p轨道低。
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