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[00:04.49]Scientific Attitudes [00:06.97]科学的态度 [00:09.46]Science had its beginning when man started asking questionsabout his environment. [00:14.18]科学起源于人类开始对自身环境产生疑问的时候. [00:18.91]He wondered where the sun went at night an

发表于:2018-12-04 / 阅读(114) / 评论(0)

大学英语自学教程上

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(woman) In our lab today, we'll be testing the hypothesis that babied can count as early as five months of age. The six babies here are all less than six months old. You'll be watching them on closed-circuit TV and measuring their responses. The exp

发表于:2018-12-05 / 阅读(136) / 评论(0)

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发表于:2018-12-07 / 阅读(168) / 评论(0)

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UNIT 2 DNA Lesson 15 Cloning Questions

[ti:UNIT 2 DNA Lesson 15 Cloning Questions] [0:01.154]UNIT 2 第二单元 [0:02.876]DNA [0:05.935]Lesson 15: 第15课： [0:07.825]Cloning Questions 克隆问题 [0:11.631]To: 至： [0:12.419]jenny@compmail.ca [0:15.357]From: 来自： [0:16.233]Li-

发表于:2018-12-10 / 阅读(267) / 评论(0)

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UNIT 2 DNA Lesson 14 A Clone of My Own

[ti:UNIT 2 DNA Lesson 14 A Clone of My Own] [0:01.795]UNIT 2 第二单元 [0:03.474]DNA [0:06.878]Lesson 14: 第14课： [0:08.810]A Clone of My Own 克隆自己 [0:11.639]THINK ABOUT IT! 想一想！ [0:13.249] Do you have a twin brother or sister? 你

发表于:2018-12-10 / 阅读(181) / 评论(0)

河北教育初中英语（初中起点）九年级下

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[ti:UNIT 2 DNA Lesson 13 Clones Are the Same] [0:00.788]UNIT 2 第二单元 [0:02.442]DNA [0:05.530]Lesson 13: 第13课： [0:07.106]Clones Are the Same 克隆人是一样的 [0:09.703]THINK ABOUT IT! 想一想！ [0:11.155] You have a pet that you l

发表于:2018-12-10 / 阅读(218) / 评论(0)

河北教育初中英语（初中起点）九年级下

托福阅读：读懂句子，攻克托福阅读简化题

托福阅读的问题，归根结底就是读不懂：文章读不懂，或者问题和选项读不懂。一切所谓的解题技巧也是为了帮助我们读懂，而不是在读不懂文章的基础上仍然能够解题。在一篇700多单词的文

发表于:2018-12-19 / 阅读(106) / 评论(0)

托福英语

NPR 08-24:Martial-Arts Masters Meet in 'Forbidden Kingdom' 两

Jackie Chan and Jet Li meet on-screen for the first time in a movie being shot in the Chinese film enclave dubbed Chinawood. From NPR news, this is All Things Considered. And Im Michele Norris. And Im Robert Siegel. We learned about Hengdian or Chin

发表于:2018-12-19 / 阅读(90) / 评论(0)

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英闻天下——604 Courtroom Participants Forbidden to Broadcast Trials

China's top court has banned participants or bystanders in legal proceedings from recording or videotaping trials. The broadcast of courtroom activities live via e-mail, microblog or other forms of media has also been forbidden. Participants are also

发表于:2018-12-19 / 阅读(102) / 评论(0)

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发表于:2018-12-27 / 阅读(117) / 评论(0)

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为什么总感觉睡不够?

人的一生中，将近三分之一的时间是用于睡觉的。刚出生的婴儿几乎每天要睡20个小时；即使成年后，每夭至少要睡 6～7小时。不管睡眠时间长短如何，睡觉看来是人必不可少的行为。这一点

发表于:2018-12-27 / 阅读(102) / 评论(0)

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LESSoN TEN (B) TEXT B Solving problems Scientifically There are scientific ways in which man solves problems. once his curiosity has been aroused, he uses certain methods and procedures to obtain new

发表于:2018-12-30 / 阅读(173) / 评论(0)

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英语作文 Last summer I went to one of the worlds most famous historical places, The Forbidden City in Beijing, China. It was the home of the emperors of the last two dynasties in China, the Ming and Qing Dynasties. The Forbidden City was built in 14

发表于:2019-01-03 / 阅读(94) / 评论(0)

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Rainforests exist because it rains a lot and that makes forests grow, right? Well, not so fast. What if its not the rain that makes the forests? What if its the forests that actually generate the rain? That is the contention of a paper in BioScience

发表于:2019-01-08 / 阅读(132) / 评论(0)

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Unit 9 △item n 项目；条款；（消息、情报等的）一条 toothpick n 牙签 △automobile n 汽车 agreement n 一致；协定 disagreement n 不一致；分歧 disagree vi 不同意；不一致 absolutely adv 绝对地；完全地 depend

发表于:2019-01-09 / 阅读(273) / 评论(0)

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英闻天下——23 Courtroom Participants Forbidden to Broadcast Trials

发表于:2019-01-19 / 阅读(104) / 评论(0)

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学个词 Learn a Word-VOA英语教学 3000 clone

今天我们要学的词是 clone. Clone 动词，克隆。Chinese scientists have successfully cloned two monkeys, using the same technique that created Dolly the sheep more than two decades ago. 中国科学家使用20多年前克隆桃莉羊的技术

发表于:2019-01-26 / 阅读(107) / 评论(0)

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The victimized water vat is located in the Imperial Garden of the Forbidden City. The names scratched into the vat appear to be Zhang Tao and Liu Ya, and are carved between two handles on the over 300-year-old bronze relic, surrounded by a heart-shap

发表于:2019-02-14 / 阅读(158) / 评论(0)

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备考托福阅读要有点“心机”

在托福阅读备考过程中，没有一点心机是不行的！我们在选资料，练真题，解题等方面都要有方法有技巧的进行，以下是小编这个心机girl给大家推荐的几点心机秘籍，助力大家早日取得托福阅

发表于:2019-03-04 / 阅读(161) / 评论(0)

托福英语

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生活大爆炸第一季第二集_3The Big Bran Hypothesis -Penny：Hey, Raj. 嗨，Raj。 Hey, listen. 嘿，听着。 I don't know if you heard about what happened last night with Leonard and Sheldon, 我不知道你是否听说了，昨晚 Leonard和

发表于:2019-03-16 / 阅读(363) / 评论(0)

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brain-size