单词：dissymmetrical transducer
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This is scientific Americans 60-Sencond Science. I am Karen Hopkin. This will just take a minute. When you think about silk, you probably think of gossamer fibers woven into lustrous garments or decadently soft bedsheets. But silk is also prized for
Scientific American(四)月
Memo From A Child To Parents 1. Don't spoil me. I know quite well that I ought not to have all I ask for. I'm only testing you. 2. Don't be afraid to be firm with me. I prefer it, it makes me feel secure. 3. Don't let me form bad habits. I have to re
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DAVID GREENE, HOST: Today in Your Health, we're taking a close look at chemotherapy. It's been a mainstay of cancer treatment for decades, but that method is slowly being edged aside in medical research as new treatments, like immunotherapy, grab the
2017年NPR美国国家公共电台3月
Hardline Stance on Iran Nuclear Deadline Could Be Pressure Tactic STATE DEPARTMENT As the March 24 deadline nears for Iran nuclear negotiators to agree on the fundamental structure of a final deal, both the U.S. and Iran increasingly have been vocal
VOA标准英语2015年(二月)
英语作文 The biggest difference between animals and human is that human can think. So we have emotions. Love,hatred and grief are emotions.I was an emotional boy since I was young.I love to watch the dark sky,the moon and the stars.They always make
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By Benjamin Sand Islamabad 16 March 2007 Tension is mounting throughout much of Pakistan as protests continue over the controversial suspension of the country's top judge. From Islamabad, VOA correspondent Benjamin Sand reports the chief justice vows
2007年VOA标准英语（三月）