单词：emission per unit length
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42.Coal-fired power plants The invention of the incandescent light bulb by Thomas A. Edison in 1879 created a demand for a cheap, readily available fuel with which to generate large amounts of electric power. Coal seemed to fit the bill, and it fuel
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by Jason Marshall In the last article, Is Multiplication Repeated Addition? we talked about what it really means to multiply two numbers. We found that the conventional meaning of multiplicationrepeated additionbreaks down when multiplying fractions,
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by Jason Marshall The last article about how to use math to send encrypted messages ended with a bit of a cliffhanger. The good news is that you will soon find out how the story ends. But, as I warned last time, the bad news is that that isnt going t
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00:05.88]A Let's read [00:09.85]Peter,Sue and Anne were in the craft class. [00:14.99]Mr Wu,the craft teacher, told the children how to improve their craft work. [00:22.15]You must make a proper plan before you start,he said. [00:27.92]This is how yo
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|1solitary|a. |tending to spend a lot of time alone |独自的；喜欢独处的 | | | |a solitary traveler |一位孤独的旅行者 | | | |A solitary tree remained standing after the hurricane. |飓风过后，惟有一棵树孤独地挺立在那儿。
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Task3: Changing Your Hairstyle to Improve Your Appearance Script If you want to look better, changing your hairstyle can be a simple fix. If youre trying to reach a weight-loss goal, a new hairstyle is a quick and easy way to freshen up your looksand
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说一口流利的英语，从简单的单词开始。 听听，读读，背背，今天你的词汇量又增加了5个。 单词/词义 中英例句 单词听读 arm [ B:m ] He received a call to arms
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Up in arms At arm's length 在美国人讲话时，或从书刊报纸上，你经常可以听到或见到一些由手臂，就是英文里的arms这个字组成的成语或俗语。有些习惯用语从
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By Nancy-Amelia Collins Bali, Indonesia 13 December 2007 The head of the United Nations Climate Change Conference is warning that a deadlock between the United States and the European Union over greenhouse gas emission targets may derail the conferen
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The Great Wall has fascinated William Lindesay since he first saw it on a map. In 1987, the Liverpool native made his first trek along 2,470 kilometers of the landmark, and he has called China home ever since. 从第一次在地图上看到长城开始
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你是不是曾经对美剧主角们炫酷的口语赞叹不已？有没有想过自己有一天也可以像他们美国人一样说一口地道的英语？有理想就什么时候都不算晚，咱们今天就从这几个酷劲十足的句子开始吧
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[00:39.12]height 高度 [00:43.33]length 长度 [00:47.42]mathematician 数学家 [00:52.35]be required to do something 被要求做某事 [00:58.34]measuring tape 卷尺 [01:04.45]A team of mathematicians were required [01:06.76]to measure the heigh
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Step by Step 3000. Book Two. Unit 8. Everybody can help the environment. Part 1. Warming up. A. Keywords. organization, protect, conserve, environment, nature, campaign, movement, climate crisis, waste, climate change, NGO (non-governmental organizat
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