缩宫素,催产素,合成催产素

SSS 2008-08-29

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. This will just take a minute. Youve probably chased a fly or two around the house this summer. And, chances are, it took a few swings before you brought down the buzzing nuisance.

发表于:2018-12-02 / 阅读(220) / 评论(0)

Scientific American(八)月

[单词解析速记].JV442.(Tractable.and.Wince)

Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文，请发贴到听力原文收集区，您将会获得10到30积分的奖励! Thank you！

发表于:2018-12-04 / 阅读(172) / 评论(0)

单词解析速记

[单词解析速记].JV454.(Refute.and.Recuperate)

发表于:2018-12-04 / 阅读(139) / 评论(0)

单词解析速记

GOING TO GRADUATE SCHOOL

DIALOG 24 laurance--How's school going? soony--Just fine.I finally got the grant to go to graduate school. laurance--Great!Are you starting your doctorate? soony--That's right.I'm going to do it in bi

发表于:2018-12-26 / 阅读(204) / 评论(0)

英语经典听力对话

[单词解析速记].JV561.(Refractory.and.Voluminous)

发表于:2018-12-30 / 阅读(168) / 评论(0)

单词解析速记

数学英语 17 What Are Fractions?

图片1 图片2 by Jason Marshall Do you frequently find yourself at restaurants with friends fumbling to figure out how to split the bill and calculate the tip? Have you ever resorted to seeking advice from your smart phone? Dont worry, we all have.

发表于:2019-01-02 / 阅读(310) / 评论(0)

数学英语

IN THE NEWS - Saudis Dispute Terror Critics

IN THE NEWS - December 7, 2002: Saudis Dispute Terror Critics By Jerilyn Watson This is Steve Ember with the VOA Special English program IN THE NEWS. This week, the government of Saudi Arabia announce

发表于:2019-01-02 / 阅读(202) / 评论(0)

教育与新闻

SSS 2009-08-12

Youve given some thought to oxygen, carbon, uranium. But youve probably never mused about the element ytterbium, symbol Yb. A new study by scientists at the National Institute of Standards and Technology, or NIST, says that ytterbium could find a rol

发表于:2019-01-08 / 阅读(177) / 评论(0)

Scientific American(八)月

音乐天堂：right here waiting--rachard max

理查德马克斯Richard Marx不仅歌唱得好，他还能自己创作写歌，《Right Here waiting》就是他自己写的一首名曲。世界上其他地方的歌手也纷纷用他的曲调重新填词翻唱，比如香港歌星钟镇涛的《红

发表于:2019-01-10 / 阅读(250) / 评论(0)

音乐天堂

VOA慢速英语2010年-Development Report - How Manute Bol Us

This is the VOA Special English Development Report. Manute Bol played ten years in the National Basketball Association. But he will be remembered as much for his shot-blocking in the NBA as for his charity work in Sudan. He died June nineteenth from

发表于:2019-01-11 / 阅读(226) / 评论(0)

2010年VOA慢速英语(七)月

Give us 15 Minutes A Day

Your boss has a bigger vocabulary than you have. That's one good reason why he's your boss. This discovery has been made in the word laboratories of the world. Not by theoretical English professors, but by practical, hard-headed scholars who have bee

发表于:2019-01-21 / 阅读(169) / 评论(0)

阅读空间

THIS IS AMERICA - Fiftieth Anniversary of Ruling Against Rac

THIS IS AMERICA - Fiftieth Anniversary of Ruling Against Racial Separation in Schools By Cynthia Kirk Broadcast: Monday, May 17, 2004 (MUSIC) VOICE ONE: Welcome to THIS IS AMERICA, in VOA Special Engl

发表于:2019-01-26 / 阅读(269) / 评论(0)

This is America

Johns Hopkins Malaria Institute

72 约翰斯·霍普金斯疟疾协会 DATE=7-19-01 TITLE=SCIENCE REPORT - Johns Hopkins Malaria Institute BYLINE=Jill Moss (Start at 01'0

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科技之光

HEALTH REPORT - Lutein

HEALTH REPORT -June 12, 2002: Lutein By Nancy Steinbach (Picture -Laretta Geren) This is the VOA Special English Health Report. Recent research has suggested that a nutrient called lutein (LOO-teen) m

发表于:2019-01-30 / 阅读(181) / 评论(0)

健康与环境

Putin Vows to Defend Democracy in Russia

Lisa McAdams Russian President Vladimir Putin has reaffirmed Russia's commitment to democratic values, while building what he called a state strong and free. He rejected Western criticism that his gov

发表于:2019-01-30 / 阅读(222) / 评论(0)

VOA2004（上）--国际时事

Offering Substitute　提供代用品

Offering Substitute 提供代用品 Specimen Letters1. Offering Rayon in Place of Watered Silk提供人造丝代替水洗丝Dear Sirs,Thank you for your fax of yesterday (April 3) with your order No.456 for 5,000 metres of 100cm wide watered silk. We

发表于:2019-02-05 / 阅读(226) / 评论(0)

实用英语

Tractor Lady

BBC Learning English People and Places Tractor Lady Jackie: Hello, welcome to bbclearningenglish.com. I'm Jackie Dalton Manon It's a 31 year old German tractor and it's green, with red inside the wheels. Jackie: and this is the Dutch actress Manon O

发表于:2019-02-06 / 阅读(439) / 评论(0)

人与地方

Tractor Sazi Tabriz beats Al-Jazira 3-1 in Asian Champions League

TEHRAN, Feb. 27 (Xinhua) -- Tractor Sazi Tabriz of Iran defeated Al-Jazira of the United Arab Emirates (UAE) 3-1 in Group A of Asian Champions League, local media reported on Wednesday. In the match held in Tabriz Yadeghar-e-Emam stadium before 85,00

发表于:2019-02-06 / 阅读(188) / 评论(0)

英语新闻

How and Why to Pick a Spiritual Practice

How and Why to Pick a Spiritual Practice In this age of technology and materialism, when many wonder what tomorrow will bring, the resurgence of spirituality is a normal phenomenon. For centuries, people have turned to religions or other belief syste

发表于:2019-02-07 / 阅读(240) / 评论(0)

阅读空间

4 Tips to Bolster Your Meditation Practice

4 Tips to Bolster Your Meditation Practice As knowledge of meditation has grown, more and more people have turned to this ancient spiritual practice as a way to reduce stress, increase their happiness and enhance their concentration. We now have acce

发表于:2019-02-07 / 阅读(221) / 评论(0)

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build a fire under someone