必要条件

经济学人:分子生物学蛋白质的奥秘(1)

Science and technology 科技 Molecular Biology: Folding Stuff 分子生物学：折叠 Shape determines a protein's function. Determining that shape, though, is tricky. 蛋白质的结构决定功能，而结构的形成却很难。 ABOUT 120,000 ty

发表于:2018-12-05 / 阅读(115) / 评论(0)

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发表于:2018-12-17 / 阅读(121) / 评论(0)

考研英语

4+1听力口语MP3-思维 09

UNIT NINE Part One Warm Up Dialogue 1 B鼓动A参加学校的音乐试唱，A对自己一直信心不足，特别是当她听说全校最好的歌手也来参加比赛时，她绝望了… A: I can’

发表于:2018-12-24 / 阅读(238) / 评论(0)

4+1听力口语MP3

Eztalk美语【41】Essential oil 精油

Billy: So what did you get? Jennifer: It's all in the bag. Billy: What's this? Essential oil? Wow! This stuff is expensive. Jennifer: I need that to relax. I'm going to put a few drops in my bath water. Billy: How is oil supposed to make you relax? J

发表于:2018-12-25 / 阅读(140) / 评论(0)

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Business Conferences Dialogue 1 -Well,I don't think we need to read the minutes of the last meeting.Copies fo them have already been distributed to you.Today,let's go on with our discussion.Mr,Lenis,will you please report your contacts with farmers'

发表于:2018-12-25 / 阅读(149) / 评论(0)

公务员口语

英文笑话：An Essential Correction 实质性的纠正

Teacher: Walter, why don't you wash your face? I can see what you had for breakfast this morning. Walter: What was it? Teacher: Eggs. Walter: Wrong, teacher. That was yesterday. 教师：沃尔特，你为什么不洗脸？我看得出你今天早饭吃了什么。沃尔特：我吃

发表于:2019-01-02 / 阅读(129) / 评论(0)

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发表于:2019-01-08 / 阅读(130) / 评论(0)

GRE作文

E-shopping fuels domestic consumption

BEIJING, Aug. 20 (Xinhuanet) -- With an Internet population larger than that of the United States and Japan combined, China saw its online shopping maintain an annual growth of 140 percent in sales since 2004, making it a powerhouse in driving up dom

发表于:2019-01-11 / 阅读(152) / 评论(0)

英语新闻

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Essential and Optional Things Ella: Its so exciting that youll be spending a month studying in McQuillanland this summer. When do you start packing? Marty: Ive already started. The organizers of the program gave me a list of things I need to bring. E

发表于:2019-01-22 / 阅读(228) / 评论(0)

2012年ESL之日常生活

Download Love

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发表于:2019-02-06 / 阅读(145) / 评论(0)

阅读空间

美国将古巴从支恐黑名单中去除

The removal of Cuba from the list of State Sponsors of Terrorism is seen as a step toward normalizing relations between the US and Cuba. The change of status follows a 45-day congressional review of the decision and was a prerequisite for opening a U

发表于:2019-02-08 / 阅读(220) / 评论(0)

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发表于:2019-02-09 / 阅读(115) / 评论(0)

托福英语

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1. leave sb the choice of ... or ... 要么，要么（选择类经典句）Our cruel and unrelenting enemy leaves us the choice of brave resistance or the most abject submission. 敌人冷酷无情/铁石心肠，我们要么顽强抵抗，要么屈膝

发表于:2019-02-09 / 阅读(162) / 评论(0)

英语口译

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1)教育类 1. For instance, applicants with Computer Science degrees would not only be qualified for jobs in high-tech companies, they would also be well prepared for any job with computer skills as a prerequisite. 2. A good education is supposed to

发表于:2019-02-09 / 阅读(119) / 评论(0)

GRE作文

Peking Opera-themed bikini show sparks controversy

Peking Opera-themed bikini show sparks controversy BEIJING, Sept. 25 (Xinhua) -- Beauty pageant contestants wearing bikinis designed with Peking Opera elements have pricked the nerves of many Internet users, who say the combination is spoiling the qu

发表于:2019-02-17 / 阅读(131) / 评论(0)

英语新闻

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雅思写作核心句型80句（4） 61.People cannot emphasize the importance of something too much. 62.On no account can we do something. 63.People should spare no effort to do something. 64.Something is closely related to something. 65.Something p

发表于:2019-02-18 / 阅读(184) / 评论(0)

雅思英语

德国小学鼓励学生上课嚼口香糖

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发表于:2019-02-19 / 阅读(114) / 评论(0)

阅读空间

TED演讲:畅想电子游戏

I grew up in Northern Ireland, right up in the very, very north end of it there, 我从小在北爱尔兰长大，就在爱尔兰岛的最最北边 where it's absolutely freezing cold. 那里非常冷 This was me running around in the back garden mid

发表于:2019-02-21 / 阅读(128) / 评论(0)

TED演讲教育篇

人生的结晶

Chemistry on an experiment called the crystal. First the formation of chemical substances dissolved in water solution, solution Sheng Yu evaporating dish, the evaporating dish placed in steel tripod, the following alcohol lamp heating, control-relate

发表于:2019-02-21 / 阅读(145) / 评论(0)

英语美文

托福词汇之essential是什么意思

essential英[??sen?l] 美[??s?n??l] adj.基本的;必要的;本质的;精华的 n.必需品;基本要素;必不可少的东西必不可少;至关重要;本质的;基本词形变化: 复数：essentials 派生词: essentiality essentialness 双语例句

发表于:2019-02-21 / 阅读(238) / 评论(0)

托福英语

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abrasine

acoustic direction finder

Advanced Research Project Agency network

alignment function character

appropriate technologist

astakos

auxiliary fishing gear