欢迎您登陆
+ 影音搜索
 
 
<2026年4月>
周一周二周三周四周五周六周日
303112345
6789101112
13141516171819
20212223242526
27282930123
45678910
听力等级

科学研究   

2022-05-08   Intermediate
Arachnids and Altruism

Keywords:

Steve: Hi to both of you. Weber: Hi, Steve. Binford: Hi, Steve. Thanks for having us. Weber: Thank you. Steve: Sure, good to talk about. We're going to talk about spiders, which are really...

Steve:大家好。 Weber:嗨,Steve。 Binford:嗨,Steve。 感谢邀请我们。 Weber:谢谢。 Steve:当然,很好。 我们要谈谈蜘蛛,它真的是无穷无尽的迷人。 Binford:是的。 Weber:当然!Stev...


2022-05-08   Video
What Is Life

Keywords:

Life is fundamentally different from dead stuff—or is it? Physicist Erwin Schrödinger defined life this way: Living things avoid decay into disorder and equilibrium. What does this mean? ...

生活从根本上不同从死物中——或者是这样吗?物理学家 Erwin Schr?dinger这样定义生活:生物避免腐烂成无序与平衡。 这是什么意思?让我们假设您的下载文件夹是 Universe。 它开始有序,并得到了更多随着时间的推移,它会变得更...


2022-05-06   Intermediate
Do Dietary Guidelines Actually Contribute to Obesity

Keywords:

Steve: Dr. Marantz, good to talk to you today. Marantz: Hi, Steve. Steve: Very interesting paper you have here, "A Call for Higher Standards of Evidence for Dietary Guidelines." Let's cut right ...

Steve:Marantz 博士,很高兴今天与您交谈。 Marantz:您好,Steve。 Steve:您这里有一篇非常有趣的论文,“呼吁为膳食指南提供更高标准的证据”。 让我们直接切入正题,然后我们稍后再回过头来;但你的基本论点是?Mar...


2022-05-04   Video
Building Blocks of DNA

Keywords:

A, C, G, and T. Adenine, cytosine, guanine, and thymine. These are the four chemical building blocks of the DNA molecule. They are components of nucleic acid, which gives DNA its ton...

A、C、G 和 T。 腺嘌呤,胞嘧啶、鸟嘌呤和胸腺嘧啶。 这四化工建筑DNA 分子的块。 它们是组件核酸,其中让 DNA 绕口令全称 DeoxyriboNucleic酸。


2022-05-02   Intermediate
A Mars Rovers Once-Over

Keywords:

Squyres: Spirit is now hunker[ed] down due to winter. Spirit is deep in the southern hemisphere of Mars and what that means is winter is pretty tough, and so what we've done is we have parked the vehi...

Squyres:由于冬天,Spirit 现在陷入困境。 Spirit 位于火星南半球的深处,这意味着冬天非常艰难,因此我们所做的是将车辆停在朝北的斜坡上,将太阳能电池板向太阳倾斜。 火星上的变化会随着季节的变化而变化,变化是天气系统出现的结...


2022-05-02   Video
Nuclear Energy Explained

Keywords:

Have you ever been in an argument about nuclear power? We have, and we found it frustrating and confusing, so let’s try and get to grips with this topic. [Intro] It all started in the 1...

你有没有争吵过关于核能?我们做到了,也找到了令人沮丧和困惑,因此,让我们试着掌握与本主题。 [介绍]这一切都始于 1940 年代。 战争的震惊和恐怖之后以及原子弹的使用,核能有望成为和平的新技术的衍生产品,帮助世界重新站起来。 每个人的想象...


2022-04-30   Intermediate
Language, Culture and Perception

Keywords:

Steve: Hi Dr. Gaby, how are you? Gaby: I'm very well, thanks Steve. Steve: Enjoying the cruise? Gaby: I am having a terrific time. Yeah, this is too much fun. It's going to be hard to go home...

Steve:您好,Gaby 博士,您好吗?Gaby:我很好,谢谢 Steve。 Steve:喜欢游轮吗?Gaby:我度过了一段美好的时光。 是的,这太有趣了。 回家会很困难。 Steve:这很有趣。 所以,你基本上是在研究语言与我们对现实和...


2022-04-30   Video
Leptin Feedback Control System

Keywords:

So at equilibrium, at your normal weight, leptin is made and you're eating different types of food. Now let's imagine you were starving or you went on a diet, your fat mass would contract ...

因此,在平衡时,在体重正常,瘦素你正在吃不同类型的食物。 现在让我们想象一下你是挨饿或节食,你的脂肪量会收缩而且你产生的瘦素会更少。 这就是现在的状态这导致脂肪减少。 所以你吃得少了,现在对低瘦素的反应就是吃得更多。 低瘦素水平是非常强大的...


使用须知 常见问题  

Copyright© 2015-2025 kuotuo Inc. All rights reserved  

粤ICP备12056166号-3 粤公网安备 44010602002199号

您的IP地址:10.1.16.193