文章列表

• 1.【英语时差8,16】M&M巧克力豆与遗传漂变（下）
• Every time an animal mates, its offspring receives a mixed bag of genes, half from its mother and half from its father. If the father and the mother s...
• 2.【英语时差8,16】有益细菌
• Some of the microbes in our gut are there for a valid reason. Well, theres a bacterium called thetaiotamicron in the intestines that lives off the foo...
• 3.【英语时差8,16】青少年吸毒（下）
• That may not sound so bad in theory, but downside about this region of the brain is that along with adolescent inhibitions may come experimentation an...
• 4.【英语时差8,16】成吉思汗（上）
• Today, Afghanistan is a war-torn region, battled over by military forces and world-spanning empires. Eight hundred years ago things were much the same...
• 5.【英语时差8,16】成吉思汗（下）
• Researcher Tatiana Zerjal, from the University of Oxford in England, and a team of geneticists took genetic samples of over twenty-one thousand men fr...
• 6.【英语时差8,16】为何狗要咆哮（下）
• Now, a few tens of thousands of years ago, wolves and people started becoming friendly species. You can imagine a person tossing a bone to a friendly ...
• 7.【英语时差8,16】为何狗要咆哮（上）
• In terms of evolution, there has to be a reason for barking, or it probably wouldnt be there. Is it to warn of predators? But dogs bark when there are...
• 8.【英语时差8,16】脱水（下）
• The biggest reason its bad to lose too much water is that the actual volume of your blood goes down. When blood volume goes down, blood pressure goes ...
• 9.【英语时差8,16】脱水（上）
• There are different factors involved here. A human being isnt an automobile which needs a certain amount of gas. There are conditions under which a pe...
• 10.【英语时差8,16】乐观有益于健康（上）
• Research shows that whether a person is an optimist or a pessimist is related to their quality of life, including their physical health. The subjects ...