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【矿物】闪铋矿
单词：eulytites 相关文章
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.
Scientific American(八)月
This is the VOA Special English Health Report. Every few years, two groups do a study of how many Americans wash their hands after using the toilet. These groups are the American Society for Microbiology and the American Cleaning Institute, formerly
2010年VOA慢速英语(九)月
[全屏观看] 点击右键- 另存为 可保存这个Flash影片
北美小学生英语一年级教材（牛津英语教材）
World Hepatitis Day is observed on May the 19th. It aims to increase awareness worldwide of the diseases hepatitis B and hepatitis C. Its hope is to encourage the prevention and diagnosis of these two diseases, and increase the number of people who r
英语课程学习计划和讲义
今天我们要学的词是tit-for-tat. Tit-for-tat意思是针锋相对，以牙还牙。Islamist militants' attacks and tit-for-tat violence between rival ethnic groups have cast doubt on Mali's upcoming elections. 伊斯兰国激进分子的袭击和
英语单词荟萃
By David Byrd Washington 02 February 2006 Daron Rahlves He is a three-time medalist at the World Alpine Ski championships. He has beaten the vaunted Austrians on their own course at Kitzbuehel, but Ol
2006年VOA标准英语（二月）
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
Scientific American(八)月
By Peter Fedynsky Washington, DC 22 June 2006 watch Common Values report President Bush's summit in Vienna with leaders of the European Union covered a broad range of topics - from trade to terrorism; from poverty to intellectual property; from the
2006年VOA标准英语（六月）
The U.S. Special Inspector General for Iraq Reconstruction has criticized the State Department for its management of nearly $3 billion in contracts and grants in Iraq. In two reports, auditors cited weak and ineffective State Department oversight of
VOA标准英语2010年(一月)
Analysts: In Syria, Few Arab Spring Lessons Apply In the past year and a half, uprisings across the Arab world have toppled four men whose rule had lasted decades. Tunisia's Zine el Abidine Ben Ali fled into exile in Saudi Arabia. Libya's Moammar Gad
VOA标准英语2012年(六月)
The US government is considering, for the first time, the approval of a genetically-modified animal for human consumption. The animal being considered is salmon, but approval could open the door for other animals as well. Those who favor the move say
VOA标准英语2010年(七)月
Stomach cancer is one of the deadliest diseases, and ranks second among cancers worldwide with at least 800,000 deaths yearly. But in the United States, the number of cases has been declining, except for among one group of Americans. Glenda Reimer, h
VOA标准英语2010年(五)月
At Scripps Research Institute in Jupiter, Florida, scientists are working to find clues about how the human brain processes memories. Their laboratory test animal is not a chimp or a dog or a rat animals that we know can remember things it is the com
VOA标准英语2010年(三月)
This is the VOA Special English Development Report. Health experts predict that soon, more people will die from cancer than from AIDS, tuberculosis and malaria combined. They expect that by two thousand ten, cancer will become the world's leading cau
2010年慢速英语(三)月
Tit for Tat针锋相对An American lady traveling in England some years ago, got into an compartment of a smoking carriage where an Englishman was smoking a pipe. For a short time she sat quietly expecting that the Englishman would stop smoking. But
英语小达人
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
科技之光
By Noel King Khartoum 13 January 2007 The international community is continuing its push for a political solution to the crisis in Sudan's Darfur region. The European Union's special representative to Sudan says efforts are under way to sign holdout
2007年VOA标准英语（一月）
By Claudia Blume Hong Kong 05 February 2007 Protesters burn a mock ASEAN logo and a US flag during their jogging for jobs and justice protest,Cebu, Philippines (File) Many leaders in Asia see a European model of integration as the way forward for Sou
2007年VOA标准英语（二月）
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
实用英语
By Zulima Palacio Washington, DC 04 August 2006 watch Education report This doctor from Africa is practicing in the U.S. When an immigrant leaves one country for another, he or she takes along abilities, education and experience. The phenomenon of b
2006年VOA标准英语（八月）