单词：aluminum copper
单词：aluminum copper 相关文章
By Gary Garriott Broadcast: November 3, 2003 This is Steve Ember with the VOA Special English Development Report. People have been recycling metals for hundreds of years. Today, re-using metal waste o
VOA2003（下）-发展与科学
图片1 metal n. 金属 例句：This metal is harder than that one. 这种金属比那种硬。 metallic adj. 金属(性)的 例句：Fannie' s shovel struck against something metallic when she wasplanting flowers in the garden. 当芬妮在花园里种
漫画搞定六级词汇（文本+音频）
This is the VOA Special English Development Report. Researchers say they have found a way to extend the storage life of a drug used to treat H.I.V. Their work could give infected mothers in the developing world a new way to prevent the spread of the
2010年VOA慢速英语(五)月
Most works of art - paintings, sculptures, artistic jewelry - are created for a collector or patrons who visit a gallery. The artist makes something, and someone else buys it and takes it home. Others create large public art - sculptures and statues
VOA标准英语2010年(九)月
Scrap-Metal Separation May Become Cheaper 新技术降低废金属分离成本 According to the Environmental Protection Agency, the United States throws 14.8 million tons of scrap metal into landfills every year. One of the main reasons is the diffi
VOA标准英语2015年(二月)
Part III Listening Comprehension (35 minutes) Section A Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the conv
英语六级听力练习集锦
How does acid deposition affect human health? We eat food, drink water, and breathe air that has come in contact with acid deposition. Canadian and U.S. studies indicate that there is a link between t
知性英语
DEVELOPMENT REPORT - Recycling Scrap Metal Into MoneyBy Gary Garriott Broadcast: Monday, July 31, 2006 This is the VOA Special English Development Report. People have been recycling metals for hundred
2006年慢速英语（七）月
Japanese Steelmaker Admits False Safety Information The Japanese manufacturer Kobe Steel is investigating problems with safety inspection information about its products. The company reported improper conduct related to some steel, aluminum and copper
2017年VOA慢速英语(十)月
AS IT IS 2015-03-25 Scrap Metal Separation May Become Less Costly 废金属分离技术成本可能会降低 Recycling, or re-using, metals is much less costly than making them from raw materials in the Earth, called ore. But when old cars, household
2015年VOA慢速英语(三)月
Several accords signed to boost relations between Turkey and Cameroon Ntaryike Devine, Jr. | Yaounde, Cameroon 17 March 2010 It was the first trip to Africa for the Turkish president, who arrived in Cameroon yesterday accompanied by 120 businessmen,
VOA标准英语2010年(三月)
Good morning, everyone. Mining firm Glencore has said it's operationally and financially robust after questions were raised about its financial future. On Monday, its shares dived 30% after a note from analysts said its share value could be eliminate
澳洲ABC新闻快递2015年
DEVELOPMENT REPORT - Reusing Metal Waste Provides Work For Many in Developing Countries By Gary Garriott Broadcast: Monday, April 04, 2005 I'm Gwen Outen with the VOA Special English Development Repor
农业与发展
By Naomi Schwarz Dakar 11 December 2006 The outside world has long looked to Africa as a source for raw materials. In Senegal, Indian firms are buying up metric tons of recycled metal, including aluminum. For VOA, Naomi Schwarz visited an aluminum p
2006年VOA标准英语（十二月）
By Jeff Swicord Cleveland, Ohio 18 March 2008 The subprime mortgage crisis has devastated property values and the quality of life in cities across the United States. In this, the second part of a three part series, VOA's Jeff Swicord takes a look at
VOA标准英语2008年（三月）
Part 2. The Times capsule. Keywords. time capsule, future, be passed on. Vocabulary. copper, aluminum, stainless, non-rusting, leakproof, humidity, Zimbabwe. A. Do you know what a time capsule is and what it is for? Listen to the following explanatio
step by step 3000 第一册
U.S. retail sales fell half a percent in June providing more evidence that the U.S. economic recovery will slow down in the second half of the year. But the weaker than expected consumer spending appeared to have little impact on Wall Street as inves
VOA标准英语2010年(七)月
Chinas latest effort to curb air pollution is raising hopes for the global aluminium industry, adding fresh momentum to a rally that has left the base metal as the best performer this year. 中国发起的旨在遏制空气污染的最新努力为铝价
英语新闻
And two explosions in Boston, at the finishing line of Boston marathon have claimed two lives. According to local media outlets, including the Boston Globe, more than 100 people injured and are being treated in nearby hospitals. There's been a series
澳洲ABC新闻快递2013年
As you might expect, oxygen is our most abundant element, accounting for just under 50 percent of the Earth's crust, 你也许会想到，氧是最丰富的元素，占地壳的将近50%。 but after that the relative abundances are often surprising.
万物简史