单词：retardation function
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外研社新标准高中英语选修7
The Mercury Mess By Samantha Levine / 2004, as first appeared in U.S. News nbsp; What are the dangers of mercury in fish? Can the mercury mess be cleaned up? 1 Are these fish safe to eat?” It’s a
彭蒙惠英语
Rare but Deadly By Susan Brink /2005, U.S. News World Report . All rights reserved with permission. Distributed by Tribune Media Services International. Simple, cheap blood tests could save thousands
彭蒙惠英语
Every week, more children arrive to work in the hundreds of primitive mines in the bush. Here they endure long hours at dangerous jobs, wringing flecks of gold from the dirt with mercury. One of them is a 12-year-old boy named Saliou. Momodou is just
自然百科2016年
听广告学英语:RICHON Aficio Digital Multi-function System理光数码多功能系统 原文：Mary:Everybody calls me a multi-function secretary. One of her bosses (gives her a pad of paper):Mary, pick up this. Mary:Because I have to serve several bosses. Anothe
听广告学英语
People start stereotyping early. Even toddlers react positively to members of their own race, but often distrust those from different groups. The seeds of racism are planted in most everyone. Everyone, that is, except people with a rare genetic condi
60秒科学
By Lisa Schlein The UN Children's Fund, UNICEF, says Iodine Deficiency Disorders, which cause mental retardation, are a huge problem in Europe and Central Asia. UNICEF says this disorder can be solved
VOA2004（下）--健康科技
People start stereotyping early. Even toddlers react positively to members of their own race, but often distrust those from different groups. The seeds of racism are planted in most everyone. Everyone, that is, except people with a rare genetic condi
Scientific American(四)月
This is Scientific American's Sixty-Second Psych. I'm Christie Nicholson. Got the minute? Say a teenager takes the car without permission and crashes it. Or pole jumps off a bridge into white water. Bruised, broken or worse, arrested, the first words
Scientific American(五)月
Time now for StoryCorps. This oral history project is traveling the country, collecting interviews between friends and families. Today we hear from a daughter and her father. --My name is David Warm, I'm 51 years old. --My name is Mary Warm, and I'm
2006年NPR美国国家公共电台
This is the VOA Special English Health Report. Deep inside each cell in our body is all the genetic information needed for life. Human genes are normally organized along forty-six chromosomes -- twenty-three from each parent. David Petersohn of Libe
VOA慢速英语2008年（九）月
This is the VOA Special English Health Report. Human genes are normally organized along forty-six chromosomes in our cells, twenty-three from each parent. A school for people with Down syndrome in Mexico City But some people are born with an extra c
VOA慢速英语2009年（九）月
Tools to Use with Gmail If you use Gmail, Google's email program, you should know about the many tools to help you make the most of your email. Sure, you could use the Google-based email service and do just fine without any of the special functions.
2016年VOA慢速英语(二)月
By Carol Pearson Washington 14 January 2008 For years autism has baffled researchers and devastated families. Autism typically appears in the first three years of life. Symptoms include problems with communication, difficulty forming relationships an
VOA标准英语2008年（一月）
The Lacandon are direct descendants of the Maya peoples who live in the jungles of the Mexican state of Chiapas. Until the mid-20th century, they had little contact with the outside world. As a result, the indigenous group was almost extinct. Today
VOA标准英语2009年(五月)
According to Israeli scientists, tearful women are a turnoff to men. But how do women feel about men who cry? Researchers are soon to begin testing how women react to chemicals contained in the tears of men. Our reporter Li Dong has the details. Natu
世界各地新闻集锦
SARAJEVO, April 14 (Xinhua) -- EUFOR is to hold military exercise in Bosnia and Herzegovina (BiH) between April 15 and April 28, local media reported on Sunday. The exercise, codenamed quick response 2013, is aimed to demonstrate the ability of EUFOR
英语新闻
这是一个令人心酸的故事，每个人都有权憧景新的生活，但年仅八岁的Philip除外，因为他缺乏憧憬未来的必要条件一个健康鲜活的生命，所以看看他的new life愿望吧，你一定被会为你的幸福感动
英语美文