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Unit 11 Edward and His Incredible Black Hole177 爱德华和他那难以置信的黑洞 小时候，最吸引人的童话故事或者动画片总是与星空和宇宙有关。很多人在童年里都做过飞上太空﹑探索宇宙的梦想。爱德华将梦想付诸实施，虽然其结局是悲惨的，但谁能说，他的科学探索精神不
2006年星火30篇考研词汇
A new round of food safety checks is underway in China after reports emerged suggesting a number of egg-processing plants have been using potentially-toxic copper sulphate to help pickle lime-preserved duck eggs. CRI's Li Dong has more details. Gener
世界各地新闻集锦
How does acid deposition affect human health? We eat food, drink water, and breathe air that has come in contact with acid deposition. Canadian and U.S. studies indicate that there is a link between t
知性英语
It's boating season, which means it'll soon be time for that annoying ritual, the scraping of the barnacle. They latch on tight and don't let go. Barnacles can be a major pain. As they grow they build up calcium deposits under a boat's paint. And the
Scientific American(七)月
The Cleaning Power of Soft Drinks! 饮料的神奇清洁能力 Lets begin with a cleaning tip: If you have some tarnished or corroded brass that you want to clean, an old brass candlestick for example, you can use Coca-Cola, or any other cola soft dr
英语听力文摘 English Digest