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科学美国人60秒 SSS Stopping Splashes with Smarter Surfaces

When you spill a liquid on the ground, it splashes. But if youre a guy using a urinal, or, more important, if the liquid is dangerous, say, an infected blood sample, you want to limit splashing. In other words: If an accident happens, you want the dr

发表于:2018-12-24 / 阅读(58) / 评论(0) 分类 2016年Scientific American(十二)月

胡敏读故事记单词托福词汇060

Lesson 60 Strike 罢工 Words: defer vi. 遵从，听从；vt. 延期 deference n. 遵从，顺从；敬意 deferential adj. 顺从的；敬意的 defiant adj. 大胆反抗的 deficiency n. 缺乏，不足 deficient adj. 缺乏的，不足的 deficit n. 赤字 defile v. 弄脏，玷污 definite ad

发表于:2018-12-30 / 阅读(45) / 评论(0) 分类 胡敏托福词汇记单词

英语听力：自然百科 行星旅行指南：火星 Mars—14

When we reconstruct our imaginations, Mars are 3 billion years ago. We tend to make it like Earth, warm and clozzying, but it wasn't. Mars back in its wettest warmth face which probable like Earth today in its coldest regions. So I'm imagining a plac

发表于:2019-02-03 / 阅读(72) / 评论(0) 分类 自然百科2012年

VOA标准英语2011--Earthquake Science Still a Shaky Busines

Earthquake Science Still a Shaky Business The magnitude 5.8 earthquake that rattled the East Coast of the United States in August caught everyone - even geologists - by surprise. But even when there's reason to think an earthquake could be around the

发表于:2019-02-12 / 阅读(106) / 评论(0) 分类 VOA标准英语2011年(十月)
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