单词：diaminopyrimidines
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英文魔法师字源大挪移
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，
经济学人科技系列
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
Scientific American(一)月
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
Scientific American(四)月
UNIT 12 EATING AT THE RESTAURANT Lesson 23 Part Ⅰ Warming-up Exercises Lesson 23 Part Ⅰ Warming-up Exercises A ． Phonetics: Rhyming 1 ． a ． will b ． meal c. well 2 ． a ． cake b ． che
英语听力入门 (全四册)
In the South of France, her restaurant had no equal. Last night we served this. In this restaurant, the cuisine is not an old, tired marriage; _______1________. Until one family. Papa, slow down stop! stirred things up. I want to buy this restauran
英文电影预告片填空
bedizen, [bi'diz(ə)n] v 把装饰得过分华丽而俗气；穿着俗丽 【记】bed床
不择手段背单词
Egyptian archaeologists have discovered the bottom part of an unknown pyramid in the Sakkara area about 18 miles south of Cairo. NationalGeographic explorer-in-residence Dr. Zahi Hawass, the Secretary General of the Egyptian Supreme Council for Anti
国家地理2008年
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
科技之光
By Bill Rodgers Washington. D.C. 29 March 2006 watch Civil War report A grieving widow touches her husband's coffin as it is carried to a cemetery The continuing sectarian violence in Iraq has raised
2006年VOA标准英语（三月）
VOA2004（上）--各类新闻
迷你对话： A: She lives a happy life after marriage. 婚后她过着幸福的生活。 B: We all know that. Her husband always make a fuss of her. 我们都知道，她丈夫对她呵护入微。 A: Lucky her. 她可真幸运。 地道表达：
迷你对话学地道口语
Egyptian archaeologists have discovered the bottom part of an unknown pyramid in the Sakkara area about 18 miles south of Cairo. National Geographic explorer-in-residence Dr. Zahi Hawass, the Secretary General of the Egyptian Supreme Council for Anti
自然百科2008年
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
经济学人科技系列
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
经济学人科技系列
Hi! This is Stever Robbins, host of the Get-it-Done Guys Quick and Dirty Tips to Work Less and Do More. Grammar Girl is working on her book this week and since I do a lot of public speaking, she asked me to talk about how to use similes and metaphors
英语语法 Grammar Girl
Even when he has lunch by himself, he never dines alone. 即使他是一个人在吃午餐，但他也并不孤独。 A loving husband headed to a California In-N-Out Burger last week for a date with his wife, who died five years ago. He propped up a
英语新闻
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
万物简史
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
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