乳腺导管造影

Human parents usually have one or sometimes two offspring at a time, and when babies get delivered we pour all our energy into child rearing. But other animals raise lots of babies at once. And the weaker individuals can be at a big disadvantage. If

发表于:2018-12-02 / 阅读(93) / 评论(0) 分类 2016年Scientific American(十二)月

第六章 女性生殖系统 Chapter 6 Female Reproductive System areola of breast 乳晕 abdominal orifce of uterine tube 输卵管腹腔口 anal region 肛区 ampulla of uterine tube 输卵管壶腹 anococcygeal ligament 肛尾韧带 areolar gland 乳晕腺 axillary process 腋

发表于:2018-12-05 / 阅读(130) / 评论(0) 分类 医学英语

[00:00.00]Unit 8 My Toys [00:05.58]1.Listen.Point.Say. [00:19.62]What do you want? [00:23.18]I want the orange ball. [00:27.11]2.Listen.Say.Do the actions. [00:43.45]My toys are in my toy box.I take them out to play. [00:48.89]And when I've finished

发表于:2018-12-13 / 阅读(163) / 评论(0) 分类 新派英语第一册

By Nico Colombant Dakar 04 December 2007 Burkina Faso's cotton production this year has decreased due to inconsistent rains and high oil prices, frustrating executives and farmers in sub-Saharan Africa's leading cotton producer. VOA's Nico Colombant

发表于:2019-01-04 / 阅读(89) / 评论(0) 分类 VOA常速英语2007年(十二月)

Graph Search的理念在于,以谷歌搜索引擎发掘互联网信息的方式,发掘Facebook网站社交图谱的含义。Graph Search扩展了Facebook的核心使命:不仅帮助用户与已知的他人建立联系,还能成为一款发现工

发表于:2019-01-05 / 阅读(100) / 评论(0) 分类 英语新闻视频

By Jerilyn Watson EDUCATION REPORT –August 22, 2002: Special Education This is the VOA Special English Education Report. More than six-million American students have physical or mental problems. The

发表于:2019-01-06 / 阅读(87) / 评论(0) 分类 教育与新闻

Micronutrient Powders Effective in Reducing Anemia in Children Nutrients taken in powder form are effective in preventing malnutrition in children, according to new findings. Children throughout the developing world suffer from anemia - a shortage of

发表于:2019-01-13 / 阅读(160) / 评论(0) 分类 VOA标准英语2011年(九月)

Delegates from 171 countries and several hundred civic groups are meeting next week in Uruguay to discuss ways to reduce tobacco consumption around the world. A controversial report published on the eve of the meeting says some of the proposed measur

发表于:2019-01-14 / 阅读(86) / 评论(0) 分类 VOA标准英语2010年(十一)月

It started with a simple experiment: take some graphite - the black stuff in the middle of a pencil - and put a piece of tape over it. When the scientists at the University of Manchester did that, they found that they could develop a material that co

发表于:2019-01-14 / 阅读(117) / 评论(0) 分类 VOA标准英语2010年(十)月

Graphene Called Amazing, Versatile Material of the Future 前景光明的多功能材料石墨烯 In 2004, two scientists at the University of Manchester in England isolated a carbon-based material called graphene, with some unusual properties. Andre

发表于:2019-01-14 / 阅读(102) / 评论(0) 分类 VOA标准英语2014年(二月)

SCOTT SIMON, HOST: Dinner At The Center Of The Earth is a novel that winds together the stories of a prisoner, his guard, mothers, sons, spies, statesmen, traitors and lovers. Sometimes - maybe even more than sometimes - they're the same person. Dinn

发表于:2019-01-16 / 阅读(81) / 评论(0) 分类 2017年NPR美国国家公共电台9月

英语写作中的常用句型

发表于:2019-01-17 / 阅读(115) / 评论(0) 分类 英语学习方法

第一部分 常用于引言段的句型的2类表达方式 一、议论文常用句型 1. It is a fact that. 2. It is well-known that. 3. There is no doubt that. 4. I think that. 5. Contrary to the popular thought, I prefer. 6. Some people say/belie

发表于:2019-01-17 / 阅读(114) / 评论(0) 分类 实用英语

AGRICULTURE REPORT - More From Less: America's Highly Productive Farms By Mario Ritter Broadcast: Tuesday, June 28, 2005 I'm Gwen Outen with the VOA Special English Agriculture Report. At one time, th

发表于:2019-01-30 / 阅读(99) / 评论(0) 分类 农业与发展

By Noel King Juba, Southern Sudan 05 January 2006 Young children carrying school books in Nyala, southern Darfur region of Sudan (File photo - Feb 16, 2005) It has been one year since a landmark peace

发表于:2019-01-31 / 阅读(118) / 评论(0) 分类 2006年VOA标准英语(一月)

By Kari Barber Kinshasa 26 November 2007 The president of the Democratic Republic of Congo has announced changes in his government, naming 10 new ministers, while at the same time reducing the number of government positions. Kari Barber reports from

发表于:2019-01-31 / 阅读(72) / 评论(0) 分类 VOA常速英语2007年(十一月)

By Deborah Tate Capitol Hill 04 January 2007 Members of the new Democratic majority in the U.S. Congress are calling for American troop reductions in Iraq, amid reports that President Bush is preparing to announce an overhaul of his Iraq policy that

发表于:2019-02-05 / 阅读(112) / 评论(0) 分类 2007年VOA标准英语(一月)

By Tom Rivers London 17 November 2007 Reacting quickly to the latest UN climate change report, Prime Minister Gordon Brown is pledging that Britain will lead the world in reducing carbon emissions. For VOA, Tom Rivers reports from London. In what is

发表于:2019-02-08 / 阅读(46) / 评论(0) 分类 VOA常速英语2007年(十一月)

(一)段首句1. 关于人们有不同的观点。一些人认为There are different opinions among people as to ____ .Some people suggest that ____. 2. 俗话说(常言道),它是我们前辈的经历,但是,即使在今天,它在许多场合仍

发表于:2019-02-17 / 阅读(58) / 评论(0) 分类 四六级写作指导

本文为大家准备了GRE词汇词根:duc,便于考生GRE考试备考。 duc , duct = lead 引导 409. educate〔 e- 出, duc 引导,-ate 动词后缀;引导出来,把由无知状态中引导出来教导出来 〕教育410. education〔 见上

发表于:2019-02-25 / 阅读(110) / 评论(0) 分类 GRE英语