And typically, we'll be treating at least some cases where we're dealing with ideal gases in which case we can easily get delta u.
那么我们也可以定出功,对吧?,典型地,我们至少会处理,一些理想气体的情况。
Some of the most, like famous, I mean, there's General Petraeus who's a big deal in the U.S. military.
有一些人非常出名。例如,美国军队的大人物彼得雷乌斯将军。
If you look at the history of U.S. Taxes, the very simple history is World War One and World War Two.
如果你看一下美国税收历史,里面提到了一个典型的时期,就是一次世界大战和二次世界大战的时候。
It turns out the U.S. and Jamaica are the only two places on Earth now that use the Fahrenheit scale.
事实上现在地球上,只有美国和牙买加这两个国家,还在使用华氏温标。
In the next twenty-five years the increased--the anticipated increase in diabetes is supposed to be about 37% in the U.S.
在未来的二十五年中,预计美国的糖尿病患者的人数,将增加37%
Two weeks after the Columbine massacre, Ludlow Colorado I got called before the U.S. Senate Commerce Committee to testify on the relationship of youth culture and violent entertainment.
科罗拉多可伦拜高中枪杀案,事发两周后,美国参议院商务委员会给我打电话,让我参加一场听证会,主题是青年文化和暴力性娱乐的关系。
This is the vaccine that you probably took; the vaccine that's still most widely used in the U.S.
你可能也服用过这种疫苗,在美国这种口服疫苗至今
So, it was a very popular book in the U.S., but it did have this history of being banned in Europe, and it was certainly controversial here.
因此,尽管现在这是一本广受欢迎的书,但它历史上确乎,在欧洲遭遇过禁止,并且在美国也是非常有争议的。
In fact, on the web, internationally, so people in places, maybe places in the U.S.
课程将被发布到网络上,全球各地的人都能看到,比如美国人
Well, I am from Spain, so I knew I wanted to come to the U.S. because of the system.
嗯,我是西班牙人,所以我知道我想到美国,因为美国的教育体系。
In the meantime, I believe that the U.S. is doing quite a bit of work in terms of raising fuel efficiency standards,
同时,我相信美国在提高燃料效率标准方面做了不少事,
A Napoleon who was in one place in France and is now simultaneously in two places in the U.S.
曾在法国某地的一个拿破仑,现在同时出现在美国两个地方。
In fact, I think Baidu answers more queries in China today than Google does in the U.S.
说实话,中国人使用百度搜索的次数,比在美国人使用谷歌搜索的次数还要多。
Yeah, so first of all, I always wanted to, at least, stay for a while in the U.S.
首先,我一直就想,想在美国至少呆一段时间。
I heard that there are some secret communities in U.S. universities. How about Yale?
我听说在美国大学里有一些秘密的社团,耶鲁大学有这样的社团吗?
Because the U.S. is an arguably very successful country, so we have, potentially, a bias in--it's called a selection bias.
因为毫无疑问美国是个很成功的国家,因此我们的潜意识中,存在选择性偏差
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