文章列表

• 1.【英语时差8,16】为什么要给汽车换油？（下）
• Heat and the motion of the engine break down the long chains into shorter chains and those chains are broken down even more. Old oil is better than no...
• 2.【英语时差8,16】肠道神经系统（下）
• While this second brain is not nearly as complex as the brain in your head, it does have its own motor and sensory neurons, and it uses many of the sa...
• 3.【英语时差8,16】为什么要给汽车换油？（上）
• How often do you change the air in your tires? How about your brake and radiator fluids? You may need to fill them up or change them once in a while, ...
• 4.【英语时差8,16】记忆的奥秘（上）
• Do you remember who won the world series in nineteen sixty- eight, but forget where you left your keys? Are you great at remembering all the details o...
• 5.【英语时差8,16】肠道神经系统（上）
• It sounds like a really bad horror movie, doesnt it? While this creature has an ordinary brain inside its skull, it also has a second brainmuch smalle...
• 6.【英语时差8,16】大脑与手（下）
• When people lose a hand, the part of the brain dedicated to that area receives no input at all. It becomes inactive. But the areas around it are still...
• 7.【英语时差8,16】为什么禁止近亲结婚？（下）
• Similarly, if you mix two animals that have close genetic makeups, the offspring wont be as healthy as the offspring of two genetically dissimilar par...
• 8.【英语时差8,16】为什么禁止近亲结婚？（上）
• Its a distressing fact that human activities are causing the wide-scale extinction of other species on earth. Something you may not know, however, is ...
• 9.【英语时差8,16】糖果的沸点（上）
• Recipes for fudge tell you to heat a sugar syrup to two hundred and thirty degrees Fahrenheit. Taffy recipes give similar instructions, but with a tem...
• 10.【英语时差8,16】大脑与手（上）
• A surprising phenomenon sometimes occurs to people who have lost a hand. Soon after the hand is lost, they report that they can feel it again this tim...