单词：ammonium zinc sulfate
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Called grass hopper mice have an unusual favorite food. Not grass hopper, no, they really like scorpions. You can see theproblem. But the mice shrug off any scorpion things(stings).And the new study shows how. Researcher injected common house mice of
Scientific American(十)月
In these types of dreams you are usually in or near a car or some other type of vehicle which is out of control or has other problems that seem insurmountable. For example, the brakes may have failed, you may have lost control of the steering, or be
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By Paul Sisco Washington, DC 24 January 2007 watch New Boat Design report In Greek mythology, Proteus was a sea god capable of assuming different forms. And now Proteus also is the name of a new type of ocean-going ship that can adapt its shape to t
2007年VOA标准英语（一月）
Key Sentences(重点句子) 874．What would you suggest I do for the cover page? 你认为我该用什么样的封页好呢？ 875．Have you read the presentation I gave? 你看过我给你的样本吗？ 876． You need to make some small changes.
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40 Years Later, US Abortion Opinions Remain Passionate To Jody Duffy, abortion is personal. As a young army officer, she was date raped. She had an abortion. Now, 30 years later, she carries a sign that reads: I regret my abortion. I will never judge
VOA标准英语2013年(一月)
Jeff: So were you always able to live with only a few possessions? Jonathan: Oh, certainly not. The first trip I ever did to South America I had the most massive backpack you could imagine. I mean I had to get it from a sort of military surplus store
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