单胚的

Health nbsp; Economics The big story for Washington for 2002 is going to be the November elections. And while that’s a long way off for the rest of the country, it’s very much on politicians- mind

发表于:2018-11-28 / 阅读(333) / 评论(0) 分类 疯狂英语2002年

M: Hi Benjamin. My name is Dr. Green. What seems to be the matter? B: I've been feeling pretty ill for a few days now. M: what are your symptoms? B: I feel chilly, I've got cramps, I keep throwing up, and I feel dizzy and tired. M: it sounds like you

发表于:2018-11-30 / 阅读(406) / 评论(0) 分类 生活英语情景口语

Japanese engineer Masaaki Nagumo had always dreamed of operating a robot from Mobile Suit Gundam. 日本工程师南云正章(Masaaki Nagumo)一直梦想着操作《机动战士高达》中的机器人。 That is the name of a popular Japanese an

发表于:2018-12-08 / 阅读(342) / 评论(0) 分类 2018年VOA慢速英语(四)月

Agricultural officials say they think an organic farm in northern Germany was the source of the deadly E. coli outbreak that has sickened more than 2,000 people in Europe. Twenty-two people have died. Investigators traced the bacteria to beansprouts

发表于:2018-12-17 / 阅读(329) / 评论(0) 分类 2011年NPR美国国家公共电台6月

In a landmark development within stem cell research, scientists say theyve used a cloning technique to make embryonic stem cells that match a patients DNA. The journal Nature highlights a study that shows the potential for using the technology to rep

发表于:2018-12-17 / 阅读(463) / 评论(0) 分类 2011年NPR美国国家公共电台10月

Todd: OK, Hisa, why don't we talk about food? 希莎,我们为什么不谈谈食物? Hisa: Good. 好的 Todd: OK, first of all, actually, can you cook? 首先,你会做饭吗? Hisa: Yes, I can. 是的,我会。 Todd: Yeah. What can you cook

发表于:2018-12-18 / 阅读(312) / 评论(0) 分类 实战口语情景对话

Japanese engineer Masaaki Nagumo had always dreamed of operating a robot from Mobile Suit Gundam. 日本工程师南云正章(Masaaki Nagumo)一直梦想着操作《机动战士高达》中的机器人。 That is the name of a popular Japanese an

发表于:2019-01-03 / 阅读(424) / 评论(0) 分类 2018年VOA慢速英语(四)月

M Madasiatic acid 崩大碗酸 Magnoflorine 木兰花碱 Magnolia cortex P.E 厚朴提取物 Magnolol 厚朴酚 Maitake mushroom P.E 灰树花提取物(舞茸提取物) Malonyl Oleanolic acid Hemi

发表于:2019-01-03 / 阅读(379) / 评论(0) 分类 医务英语

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? One of the dreams of biomedical scientists is to be able to transform adult cells into other kinds of cells. And thus avoid some of the ethical concerns of working with

发表于:2019-01-08 / 阅读(334) / 评论(0) 分类 Scientific American(十一)月

HEALTH REPORT - New Embryonic Stem Cell Lines Developed for Researchers By Paul Thompson Broadcast: Wednesday, August 11, 2004 This is Gwen Outen with the VOA Special English Health Report. Researcher

发表于:2019-01-08 / 阅读(307) / 评论(0) 分类 健康与经济

By Paige Kollock Washington, DC 20 January 2006 watch Malaria Treatments report The World Health Organization says the most effective cure for malaria could be in jeopardy, unless their new prescripti

发表于:2019-01-10 / 阅读(371) / 评论(0) 分类 2006年VOA标准英语(一月)

This is the VOA Special English Health Report. Bethesda, Maryland, near Washington, D.C., is home to the National Institutes of Health. N.I.H. calls itself the Nation's Medical Research Agency. But it supports research worldwide with its budget of a

发表于:2019-01-11 / 阅读(282) / 评论(0) 分类 VOA慢速英语2008年(十一)月

By Ted Landphair Washington 26 July 2007 For a second time in a year, President Bush has vetoed a bill that would have sanctioned federally funded stem cell research using human embryos. His stance reflects conservatives' view that destroying life to

发表于:2019-01-12 / 阅读(330) / 评论(0) 分类 2007年VOA标准英语(七月)

Southern Sudanese officials say at least 30 people have died in clashes along the border with northern Sudan as the second day concluded in the region's week-long referendum on independence. Election officials say voter turnout was 20 percent on Sund

发表于:2019-01-14 / 阅读(327) / 评论(0) 分类 VOA标准英语2011年(一月)

An end to grey hair and crows-feet could be just 10 years away after scientists showed 科学家发现,动物的衰老过程有可能逆转。 it is possible to reverse ageing in animals. 从此以后,可能仅需10年,人类就可以告别白发

发表于:2019-02-01 / 阅读(337) / 评论(0) 分类 趣味英语

英语里你不知道的几个小秘密 The shortest complete sentence in the English language consists of only one word and that is Go. 英语里由一个单词组成的最短的完整的句子就是GO。 The oldest word in the English language is t

发表于:2019-02-04 / 阅读(366) / 评论(0) 分类 实用英语

与数字有关的英语词根总结 milli-【千分之一】例:milliampere(毫安)=milli(千)+ampere(安培) centi【百分之一】例:centimeter(厘米)=centi(百分之一)+meter(米) deci【十分之一】例:decibe

发表于:2019-02-06 / 阅读(473) / 评论(0) 分类 英语学习方法

WASHINGTON, April 16 (Xinhua) -- Researchers at the University of Colorado (CU) have found that lack of a specific gene interrupts neural tube closure, a condition that can cause death or paralysis. The study was the cover story this week in the jour

发表于:2019-02-18 / 阅读(357) / 评论(0) 分类 英语新闻

Today I am going to teach you how to play my favorite game: 今天我要教你们怎么玩我最爱的游戏: massively multiplayer thumb-wrestling. 超级多人拇指摔跤 It's the only game in the world that I know of 这是我所知的唯一一个

发表于:2019-02-21 / 阅读(415) / 评论(0) 分类 TED演讲教育篇

1. The shortest complete sentence in the English language consists of only one word and that is Go. 英语里由一个单词组成的最短的完整的句子就是GO. 2. The oldest word in the English language is town. 英语里最有年头的一个词

发表于:2019-02-25 / 阅读(396) / 评论(0) 分类 英文语法词汇
学英语单词