[数] 最大长度零序列

SSS 2008-12-31

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Its the time of year to take a look backand thats just what the journal Science did as they listed their most important breakthroughs of 2008. At the v

发表于:2018-12-02 / 阅读(105) / 评论(0)

Scientific American(十二)月

数学英语 25 What is the Fibonacci Sequence

图片 by Jason Marshall Its not often someone suggests that knowing some math could make you the life of the party, but thats exactly what Im going to do. Yes, a properly timed delivery of a few fun facts about the famed Fibonacci sequence just migh

发表于:2018-12-07 / 阅读(112) / 评论(0)

数学英语

UNIT 7 Enjoy Your Hobby Lesson 56:Unit Review

[ti:UNIT 7 Enjoy Your Hobby Lesson 56:Unit Review] [0:01.051]Unit 7 [0:02.631]Enjoy Your Hobby [0:04.894]Lesson 56: [0:06.943]Unit Review [0:08.907]I. [0:10.231]Building Your Vocabulary [0:12.963]A. [0:14.500]Fill in each blank with the proper word o

发表于:2018-12-10 / 阅读(121) / 评论(0)

河北教育初中英语（初中起点）八年级上

专业术语—基因专业词汇R/S

发表于:2018-12-12 / 阅读(56) / 评论(0)

医务英语

‘maximum INDIA’ Brings India’s Sights and Sounds to Was

STEVE EMBER: Im Steve Ember. SHIRLEY GRIFFITH: And Im Shirley Griffith with EXPLORATIONS in VOA Special English. Today we travel to India by way of the John F. Kennedy Center for the Performing Arts in Washington, D.C. This cultural organization is c

发表于:2018-12-16 / 阅读(116) / 评论(0)

2011年VOA慢速英语(三)月

SSS 2011-10-21

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? The human genome was sequenced, and in the process of moving that forward the technology that was developed was incredible. And because of their efforts in human genome,

发表于:2018-12-24 / 阅读(154) / 评论(0)

Scientific American(十)月

2014年ESL之商务英语 18 Describing Order and Sequence

Describing Order and Sequence Patrick: Okay, your first task is to put all of these files in order. Maya: Wow, there must be hundreds of files in this storeroom. How am I supposed to organize them? Patrick: Create a basic filing system. Put things in

发表于:2018-12-27 / 阅读(104) / 评论(0)

2014年ESL之商务英语

第35期: arm, clear, measure, length, cotton

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

发表于:2018-12-30 / 阅读(109) / 评论(0)

每日攻克5词

数学英语 26 What is the Golden Ratio

图片 by Jason Marshall Some math is functional. Some math is fun. And some math is simply stunning. If that last description sounds improbable to you, then today just might change your mind. Because now that weve covered enough ground, were going t

发表于:2019-01-02 / 阅读(196) / 评论(0)

数学英语

SSS 2008-08-07

This is Scientific American's 60-Second Science. I'm Steve Mirsky, got a minute? Neandertals were our closest relatives. And now we know a lot more about them. Because researchers have for the first time sequenced a complete Neandertal genomethat of

发表于:2019-01-08 / 阅读(113) / 评论(0)

Scientific American(八)月

SSS 2008-05-13

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? Robin Williams thought that the platypus was cobbled together by an inebriated deity: Lets take a beaver. Lets put on a ducks bill. Now we know how weird the platypus is

发表于:2019-01-08 / 阅读(108) / 评论(0)

Scientific American(五)月

Lesson 20 - UP IN ARMS / AT ARM'S LENGTH

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

发表于:2019-01-14 / 阅读(153) / 评论(0)

美国习惯用语

ESL商务英语: ESL Podcast 288 – A Business Contract

ESL Podcast 288 A Business Contract GLOSSARY contract a written agreement between two or more people, businesses, ororganizations* Many cell phone companies make their customers sign a six-month or one-yearservice contract. party a person, business,

发表于:2019-01-18 / 阅读(212) / 评论(0)

2007年ESL之商务英语

神秘的古埃及金字塔

古埃及金字塔是奴隶制帝王的陵墓，最宏大的当为吉萨三座大金字塔。塔基呈方形，每边长230米，高146米，用230余万块巨石(每块平均重达2.5吨)垒成，国王墓室用一块400吨重的石板垒成。整体规

发表于:2019-02-01 / 阅读(76) / 评论(0)

阅读空间

Human fertilization process discovered

BEIJING, Aug. 22 (Xinhuanet) -- Researchers have discovered how a human egg captures an incoming sperm for fertilization, paving the way to help couples suffering from infertility, according to media reports on Monday. An international team of resear

发表于:2019-02-08 / 阅读(117) / 评论(0)

英语新闻

Man United target has contract revoked

发表于:2019-02-08 / 阅读(89) / 评论(0)

英语新闻

英语笑话听力+文本：Height, Not Length是高度,不是长度

[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

发表于:2019-02-15 / 阅读(117) / 评论(0)

英语笑话（MP3+文本）

Lesson 9-2:Dates 日期

Listen to the schedule of a business trip. Fill in numbers l-8 to point out the sequence of the schedule. I'm leaving for Milan on the 7th of June. l'II arrive there on the 8th evening at about 7:OOpm. Then, l'II take a shuttle bus to the hotel. On t

发表于:2019-02-17 / 阅读(84) / 评论(0)

英语听力练习题

Lesson 55-1 In the Library 在图书馆

Listen to the dialogues and write the correct sequence of l-6 as mentioned in the dialogues. A:How do I search books from the computer? B:First, key in your PIN number. Then, it goes to the Library's Homepage. Then, you can choose any way you want to

发表于:2019-02-17 / 阅读(68) / 评论(0)

英语听力练习题

《柯南脱口秀》第60期:美国梦

Thank you for being here,Fareed.Nice to have you on the show. 多谢你抽空前来法里德很高兴你能来上节目 Let's get started first with your background.I do think I know a lot about you. 首先聊聊你的背景我觉得我很了解你

发表于:2019-02-23 / 阅读(78) / 评论(0)

柯南脱口秀

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