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No body had had seen this kind of thing before, so this was the first time and all the people looking at the gel and saying

发表于:2018-12-07 / 阅读(98) / 评论(0)

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They make perfect roof tiles, but these tiles occasionally reveal something extraordinary. Perfect snapshot s from 115 million years ago, back then, Solnhofen was part of a very still and salty tropic

发表于:2018-12-07 / 阅读(68) / 评论(0)

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发表于:2018-12-12 / 阅读(123) / 评论(0)

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发表于:2018-12-13 / 阅读(115) / 评论(0)

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发表于:2018-12-13 / 阅读(147) / 评论(0)

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Unit 1 My classroom [00:04.60]Students' book Page 2 [00:08.36]Let's act [00:11.42]Stand up,please. [00:14.58]Sit down,please. [00:17.84]Open your book. [00:22.49]Close your book. [00:25.55]Stand up,please. [00:29.02]Sit down,please. [00:32.39]Open yo

发表于:2018-12-13 / 阅读(179) / 评论(0)

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发表于:2018-12-26 / 阅读(88) / 评论(0)

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超级简单英语阅读:Red Rubber Ball

Fred had a red rubber ball. He kicked the ball. It flew through the air. He picked it up. He threw it against a wall. The ball came back to Fred. He kicked it with his foot again. The ball flew over the wall. He picked it up again. He bounced it on t

发表于:2019-01-02 / 阅读(130) / 评论(0)

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今天我们要学的词是rubber stamp。 Rubber stamp, 橡皮图章，是不经过考虑就予以批准的意思，带有贬义。 The owner makes all the decisions, and the board is just a rubber stamp, 凡事都是老板作主，董事会只是一个

发表于:2019-01-08 / 阅读(74) / 评论(0)

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在排球、乒乓球等比赛中，经常会出现双方前几场持平，最后“一局定输赢”的情况。在英语中，“决胜局”就叫做rubber game。为什么要用rubber来表示“打

发表于:2019-01-08 / 阅读(116) / 评论(0)

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AGRICULTURE REPORT – June 18, 2002: Sunflower Rubber By George Grow This is the VOA Special English AGRICULTURE REPORT. Many farmers grow sunflower plants. The tall plants produce beautiful flowers

发表于:2019-01-11 / 阅读(106) / 评论(0)

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Light Bulb Inventor Tried to Create Fake Rubber At the turn of the 19th to 20th centuries, the prolific American inventor and businessman Thomas Alva Edison developed devices that changed industry, communication, and everyday life - from a practical

发表于:2019-01-13 / 阅读(92) / 评论(0)

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今天我们要讲几个在美国总统大选的竞选阶段常会用到的习惯用语。美国总统大选每四年举行一次。在大选年的前一年,准备竞争本党总统候选人提名的人士就已经在各州积极展开竞选活动了，

发表于:2019-01-16 / 阅读(159) / 评论(0)

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发表于:2019-01-26 / 阅读(90) / 评论(0)

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BEIJING, Aug. 8 (Xinhua) -- China on Wednesday started to review anti-dumping measures it imposed on chloroprene rubber imported from a Japanese company, the Ministry of Commerce said. The move came after the ministry received complaints that Japan E

发表于:2019-02-05 / 阅读(163) / 评论(0)

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Work begins this month on a new, environmentally-friendly power plant in Liberia that will use old rubber trees to generate electricity. It is part of a plan to make Liberia the world's first sustainable biomass-driven economy. Natural rubber has an

发表于:2019-02-12 / 阅读(95) / 评论(0)

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Science and technology 科学技术 Human evolution 人类的进化 You look familiar 你，似曾相识 Another piece of humanity's family tree is fitted into place 确定另一支人类谱系 THE opening scene of Mel Brooks's film History of the Wo

发表于:2019-02-16 / 阅读(116) / 评论(0)

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发表于:2019-02-17 / 阅读(146) / 评论(0)

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发表于:2019-02-17 / 阅读(125) / 评论(0)

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Boy or girl? That's the first question we ask about new babies, new puppies and newly-found fossils. Fossils? Yep. Experts can tell if an ancient Egyptian mummy or a prehistoric human was a boy or a girl just by looking at the skeleton. Here's how th

发表于:2019-02-23 / 阅读(73) / 评论(0)

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