单词：acidic group
单词：acidic group 相关文章
The Reading Group Part 1 This programme was first broadcast in 2002. This is not an accurate word-for-word transcript of the programme. ANNOUNCER: Youre listening to The Reading Group from the BBC World Service. In this series we bring together liste
英语讨论
This is Scientific American's 60 Second Science. I'm Steve Mirsky, got a minute? The Meridiana Planum region of Mars once had water that was really soft and highly acidic, conditions in incredibly hostile to any life forms that we know about. So any
Scientific American(二)月
Hungry Lasagna So you made lasagna last night, and it was delicious. You saved the leftovers by wrapping aluminum foil over the top of the pan, and putting it in the fridge. When you get hungry today, you go to look for that lasagna, but it looks lik
英语听力文摘 English Digest
Fish raised in the more acidic seawater that would result from higher carbon dioxide levels forget to flee predators. More carbon dioxide emissions lead to more CO2 dissolving in the oceans, which turns the water acidic. Those sour seas slow the grow
60秒科学
IN THE NEWS - East Asian Leaders Form New Group to Improve Area's Future By Nancy Steinbach Broadcast: Saturday, December 17, 2005 I'm Steve Ember with IN THE NEWS in VOA Special English. Two meetings
教育与新闻
DEVELOPMENT REPORT - U.S. Group Fights to Free Modern-Day Slaves By Jill Moss Broadcast: Monday, March 08, 2004 This is Robert Cohen with the VOA Special English Development Report. American officials
农业与发展
More carbon dioxide emissions lead to more CO2 dissolving in the oceans, which turns the water acidic. Those sour seas slow the growth of corals. And it turns out acidic seawater also makes clownfish and damselfish suicidally bold and reckless, accor
Scientific American(七)月
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Landfills produce methanewhich can be valuable as an energy source. But scientists haven't known why landfills make so much methane. The solid waste in
Scientific American(四)月
This is Scientific American 60 second Science, I am Sophie Bushwick, got a minute~ Theyre called hydogels: Jell-O-like materials made of networks of long-chain molecules in water. And theyre as flexible as living tissue. But hydrogels could not recov
Scientific American(三)月
By Nick Wadhams Nairobi 27 August 2007 An Ethiopian human rights group is demanding that the United States and other international donors monitor the food and financial aid they give to Ethiopia for its impoverished Ogaden region. As Nick Wadhams rep
2007年VOA标准英语（八月）
如果你爱喝葡萄酒或经常遇到要喝葡萄酒的场合，学几句高大上的品酒英语尤其重要。 品葡萄酒本节课的重点词汇: 1) wine tasting 葡萄酒品酒会2) tasting flight 品酒序列3) Cabernet Sauvignon 赤霞珠4)
美国文化脱口秀
This week on Why Tell Me Why, we are finding out why the oceans are so salty. So the oceans are salty because the oceans have been around, lets say, for over five hundred million years. And over the course of time what we found out is that weve alway
自然百科2009年
Amygdala's Acidic Aspiration Answer A study in the journal Cell shows that the buildup of carbon dioxide when we stop breathing causes a pH change that signals proteins in the brain to force us to inhale. Karen Hopkin reports. Maybe its happened to y
60秒科学
By Nick Wadhams Nairobi 20 August 2007 Doctor's from the Ugandan peacekeeping force in Somalia examine a malnourished boy at their field hospital at the Halane Camp just south of Mogadishu The medical group Doctors Without Borders is reporting a dras
2007年VOA标准英语（八月）
By Nick Wadhams Nairobi 10 December 2007 An Eritrean human rights group is accusing the governments of Sudan and Eritrea of working together to round up and deport Eritreans who have sought refuge from Eritrea's authoritarian government. Nick Wadhams
VOA常速英语2007年（十二月）
By Peta Thornycroft Southern Africa 11 October 2007 A group of 12 Zimbabwe women who say they regularly have been mistreated in police custody have produced an interim report they say documents shocking statistics of violence against members of their
2007年VOA常速英语（十月）
How to Motivate a Group I like to focus on receptive and expressive intelligence, which I call CQ. A healthy dose of CQ is essential when being in charge of a group or team because the task of motivating them often falls to you. This may seem unfair.
阅读空间
The head of the International Airways Volcano Watch group, Peter Lechner who lives in Wellington, said today that their group has been warning about volcanoes for the last 10 years or more. There are nine volcanic ash warning centres around the world
新西兰英语
Don comes up with another entrepreneurial venture, but Yael straightens him out just in time. [Thunder] Y: What are you doing outside, Don? It's about to rain. D: I'm setting up bottles. Y: I can see that. But why? D: For my new business venture: bot
英语时差8，16
Acid Water Yal: What are you doing outside, Don? It's about to rain. Don: I'm setting out bottles. Y: I can see that. But why? D: For my new business venture. Bottled rainwater! Y: As in living plastic bottles out in the rain and then selling them as
英语听力文摘 English Digest