听力原文?PART Ⅰ LISTENING COMPREHENSIONSECTION A TALKThe World Bank is one of the major channels through which development aid i s passed from industrial west to the poor and developing nations
听力原文PART Ⅰ LISTENING COMPREHENSIONSECTION A TALKWhen we talk about a modern company, we usually have managers, employees, products, research and development or marketing in mind. However, in
Salt vs. Ice食盐大战冰块Y: Why does salt melt ice?为什么食盐能让冰块融化?D: It lowers the melting and freezing point of water.是因为食盐将水的熔点和冰点降低了。Y: Oh,
Why do Stradivarius violins sound so good?为什么史特拉第瓦里小提琴声音那么美妙?A: What did I tell you?我告诉过你什么来着?B: You’re right Yaoyao.This is a beautiful piece.
The Biggest Magnet最大的磁体A: What’s the biggest magnet ever?究竟什么是最大的磁体?B: Well, that’s a great question. Well, for starters you’d have to mention whoppers like the hyb
Nature has supplied every animal except man with some covering for his body such as fur, feathers, hair, or a thick hide. But man has nothing but a thin skin, and for thousands of years human beings m
Not getting enough sleep doesn’t just make you tired. It also makes you fat because of increased food-eating, according to researchers in America.The researchers 1 a study which included eight men a
New research shows urbanization may be bad for people’s health, unless planners develop cities that allow healthier lifestyles and environments. The U.N. estimates much of the developing and develop
With chaos continuing at the U.S.-Mexico border and protests cropping up across the United States, a politically-divided Congress ponders what, if anything, to do.Republicans say some of the funds req
Scoop That Poop我好“无辜”的Actually, dog poop turns out to have a pretty big environmental impact. If you think that two in five households in the U.S. have at least one dog and that about fo