[化] 烷基氨基硅烷; 烷基氨基甲硅烷

CCTV9英语新闻：Prosecutors seek warrants to examine assets of those close to Choi Soon-sil

Prosecutors in South Korea are seeking warrants to examine the assets of those close to Choi Soon-sil, the woman at the center of the country's snowballing political scandal and the confidante of impeached President Park Geun-hye. Around 40 people ha

发表于:2018-11-27 / 阅读(493) / 评论(0)

cctv9英语新闻2017年

经济学人:分子生物学蛋白质的奥秘(3)

One common protein-contact prediction is that, if the side chain of one member of a pair of amino acids brought close together by folding is long, 一种比较普通的蛋白质接触预测就是，如果一对氨基酸的一个侧链折叠后很长，

发表于:2018-12-05 / 阅读(144) / 评论(0)

经济学人科技系列

14 A Rare Fossil Record

14 A Rare Fossil Record The preservation of embryos and juveniles is a rate occurrence in the fossil record. The tiny, delicate skeletons are usually scattered by scavengers or destroyed by weathering before they can be fossilized. Ichthyosaurs had a

发表于:2018-12-07 / 阅读(467) / 评论(0)

英语范文背诵20篇

新东方现代文背诵篇章 A Rare Fossil Record

The preservation of embryos and juveniles is a rate occurrence in the fossil record. The tiny, delicate skeletons are usually scattered by scavengers or destroyed by weathering before they can be foss

发表于:2018-12-15 / 阅读(241) / 评论(0)

新东方现代文背诵篇章

彭蒙惠英语：Spreading the World… Silbo Style

Spreading the World… Silbo Style By Susan Zimmerman Discovering an ancient whistling language on a tropical Atlantic island 1 All eyes and ears are upon teacher Isidro Mendoza when he enters the cla

发表于:2018-12-19 / 阅读(129) / 评论(0)

彭蒙惠英语

SSS 2009-01-23

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. As Valentines day approaches, remember, its the thought that counts. Just ask a decorated cricket. Because according to a study published in the January

发表于:2018-12-24 / 阅读(143) / 评论(0)

Scientific American(一)月

SSS 2009-04-28

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. Many of the key molecules for life have a specific direction, or handedness: DNA twists to the right, amino acids to the left. Now scientists at the Nation

发表于:2018-12-24 / 阅读(117) / 评论(0)

Scientific American(四)月

Designer Antibiotics

85 新功效的抗生素在加州诞生 DATE=8-15-01 TITLE=SCIENCE REPORT - Designer Antibiotics BYLINE=Jerilyn Watson （Start at 1'04

发表于:2019-01-02 / 阅读(202) / 评论(0)

科技之光

专业术语—基因专业词汇A/B

发表于:2019-01-03 / 阅读(135) / 评论(0)

医务英语

2007年VOA标准英语-Pop Duo Mozane Delivers Unique Musical Sound

By Shally Zomorodi Los Angeles, CA 01 February 2007 watch Mozane report The two members of the pop duo Mozane have been working together for just five years, but have known each other for their entire lives. VOA's Shally Zomorodi reports the group's

发表于:2019-01-07 / 阅读(232) / 评论(0)

2007年VOA标准英语（二月）

SSS 2009-09-17

The early Earths oceans were home to a lot of interesting chemistry. Now scientists have found that amino acids thought to be present way back when could have been cooked into other compounds vital for lifean idea you should take with a grain of salt

发表于:2019-01-08 / 阅读(112) / 评论(0)

Scientific American(九)月

五人英语话剧剧本-The Silber Swindle

5人 Actors: Tavern Keepe:(男主角) Young Man Keeper's Wife(女主角) Young Man Old Man Summary: Once upon a time, there was a tavern. Travelers and hunters would exchange silver ingots for copper coins and eat some food there. The tavern keeper a

发表于:2019-01-08 / 阅读(219) / 评论(0)

英文剧本

经济学人152:攻破屏障

Science and technology 科学技术 Creutzfeldt-Jakob disease 克雅氏病 Breaking down the barrier 攻破屏障 A glimmer of hope for a drug that treats disease caused by prions 药物治疗朊病毒感染疾病的一线希望 THE epidemic of mad-c

发表于:2019-01-26 / 阅读(185) / 评论(0)

经济学人科技系列

经济学人107:克雅氏病攻破屏障

Science and Technology Creutzfeldt-Jakob disease Breaking down the barrier 科技克雅氏病攻破屏障 A glimmer of hope for a drug that treats disease caused by prions 药物治疗朊病毒感染疾病的一线希望 THE epidemic of mad-cow dis

发表于:2019-01-26 / 阅读(169) / 评论(0)

经济学人科技系列

VOA常速英语2007年-Glittering Soccer World Cup Draw Aims to Silenc

By Scott Bobb Johannesburg 26 November 2007 Organizers of the 2010 soccer World Cup in South Africa are calling Sunday's preliminary draw in the southern city of Durban a success. They say they hope it will put an end to doubts about the African nat

发表于:2019-01-31 / 阅读(122) / 评论(0)

VOA常速英语2007年（十一月）

Uma Gunasilan

BBC Learning English People and Places Sun Hai Nin SIG Sun Hai Nin: Well, hello everybody Im Hai Nin, Im from China and now Im in London. William:And Im William Kremer welcome to People and Places. You just heard a young Chinese Woman, Sun Hai Nin.

发表于:2019-02-03 / 阅读(417) / 评论(0)

人与地方

音乐咖啡厅:Be Still My Heart-Silje Nergaard

极素白极纯净，没有一点尘埃，仿佛天堂的所在。这样美好无暇的颜色却让人刺痛得张不开眼。在这白晃晃的空间里，Silje对着镜头睁大她那毫无表情的瞳孔，低吟浅唱，旁若无人。我们还是需要一点杂质的，这和我们无法呼吸百分之百的纯氧是一个道理。 My heart's not lonel

发表于:2019-02-04 / 阅读(251) / 评论(0)

音乐咖啡厅

万物简史第407期:生命的起源(1)

19 The Rise Of Life 第十九章生命的起源 In 1953, Stanley Miller, a graduate student at the University of Chicago, took two flasksone containing a little water to represent a primeval ocean, 1953年，芝加哥大学的研究生斯坦利米勒拿

发表于:2019-02-17 / 阅读(128) / 评论(0)

万物简史

万物简史第408期:生命的起源(2)

Proteins are what you get when you string amino acids together, and we need a lot of them. 你把氨基酸串在一起，就得到了蛋白质。我们需要大量的蛋白质。 No one really knows, but there may be as many as a million types of pro

发表于:2019-02-17 / 阅读(105) / 评论(0)

万物简史

每天吃鲑鱼像戒烟一样有益

Eating a small steak every day could be as good for you as stopping smoking, scientists say. 科学家说，每天吃一小块牛排可以像戒烟一样对你有好处。 People who eat lots of protein-rich food were found to have lower blood pressu

发表于:2019-02-18 / 阅读(379) / 评论(0)

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2-chloro-4-nitroaniline