欢迎您登陆
+ 影音搜索
听力等级

含中文字幕节目   

British English 2022-07-02    
The Evolution of Cooperation

Keywords:

HOW people collaborate, in the face of numerous temptations to cheat, is an important field of psychological and economic research. A lot of this research focuses on the “tit-for-tat” theory of co-ope...


Pre-Intermediate 2022-07-02    
The Reagan Years

Keywords:

Soon after his presidency began,there was an attempt on his life.A gunman shot President Reagan in March nineteen eighty-one. Doctors removed the bullet.He rested, regained his strength and returned t...


Intermediate 2022-07-01    
The Geology of Mausoleums

Keywords:

Olsen: This monument for Matthew Borden, Matthew was the calico king of Fall River, Massachusetts— made his millions in fabric. This monument was constructed in 1904, the architecture from Carrére and...


Video 2022-07-01    
What is Dark Matter and Dark Energy

Keywords:

Matter, as we know it; Atoms, stars and galaxies, planets and trees, rocks and us. This matter accounts for less than 5% of the known universe. About 25% is dark matter; and 70% is dark ...


Pre-Intermediate 2022-06-30    
Genie’s Story

Keywords:

In the autumn of 1970, a woman walked into a service office in Temple City, California. She brought her daughter with her. The woman wanted to receive money because she was going blind. A woman workin...


British English 2022-06-30    
Women and Jobs

Keywords:

Women and jobs. What women do. Economic growth has surprisingly little effect on the wage gap. “MEN are finished.” That was the proposition in a debate at New York University (NYU) on September 2...


Intermediate 2022-06-29    
About E. Coli – Part II

Keywords:

Zimmer: Another thing about E. coli is that to understand what it means for it to be alive is to understand how it's alive with other E. coli. For a long time, scientists just thought about E. coli ju...


Video 2022-06-29    
Creating Embryonic Stem Cell Lines

Keywords:

The inner cell mass cells, which are going to be removed and grown in a Petri dish. We first remove the outer layer that would normally form the placenta. Here the cells are put into a...


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:3.147.6.122