单词：in situ composite
单词：in situ composite 相关文章
By Suzanne Presto New York 31 August 2007 The U.N. Assistant Secretary General for Humanitarian Affairs and Deputy Emergency Relief Coordinator, Margareta Wahlstrom, says the humanitarian situation in Sudan's western Darfur region is worsening. From
2007年VOA标准英语（八月）
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Airplane manufacturers have been changing over from aluminum to advanced composite materials. These lighter, stronger composites are made of fibers of
Scientific American(三)月
托德和詹安娜在讨论学校生活 Todd: Hello! Jeanna: Hello! Todd: Hi, what's your name? Jeanna: Jeanna. Todd: OK, Jeanna, how old are you? Jeanna: I'm 15 years old. Todd: 15! OK, are you in high school? Jeanna: Yes, I am. Todd: OK. What do yo
英语口语练习册
图片1 certain adj. 确定的，某一个，无疑的，必然的，可靠的 例句：For certain reasons I will be unable to attend the meeting. 因为某种原因，我不能出席这次会议。 certainly adv. 的确，（口语）当然，行 例
漫画搞定六级词汇（文本+音频）
Todd: Hello! Jeanna: Hello! Todd: Hi, what's your name? Jeanna: Jeanna. Todd: OK, Jeanna, how old are you? Jeanna: I'm 15 years old. Todd: 15! OK, are you in high school? Jeanna: Yes, I am. Todd: OK. What do you think about high school? Jeanna: It's
英语访谈对话
Part 9 - Difficult work situations andasking for a pay riseThis programme was first broadcast in 2001This is not an accurate word-for-word transcript of the programmeCarmela: Now youre too busy to worry about reading English grammar books anddiction
英语讨论
South Africa's two most powerful leaders, the president and head of the ruling party, have warned the situation in Zimbabwe is dire and that urgent steps are needed to avoid a collapse in the country. VOA's Delia Robertson reports from Johannesburg,
VOA标准英语2008年(十一月)
America is so big. It has 50 states. Some states are bigger than other countries. Texas is the biggest state in America. Texas itself is bigger than France. People sometimes consider states as countries because they are so different. Even cities can
英语第5级听力-English Level 5
美国航空航天局科学家测试新型飞机 The U.S Aeronautics and Space Administration, NASA, is commonly associated with space exploration, but aeronautics is still a big part of the agencys research. Engineers at its Aeronautics Research Cen
英语新闻
The world this week 一周要闻 Business 商业 The prospect of an all-out trade war between America and China became real. 美国和中国之间爆发全面贸易战的可能性变成了现实。 Donald Trump said he would impose tariffs on $50bn o
经济学人要闻
By Phillip Wellman Dakar 12 October 2007 Officials at the United Nations say they would like to review disaster management policy in West Africa, where recent floods have killed hundreds and left hundreds of thousands displaced. They say the floods h
2007年VOA常速英语（十月）
By Tony Budny Washington 28 February 2008 A top United Nations official is warning U.S. lawmakers that Iraqi refugees face what he terms absolutely dire circumstances in their countries of asylum. Between two and five million Iraqis have fled their h
VOA常速英语2008年（二月）
By Bill Rodgers Washington, DC 15 September 2006 watch Iraq report The latest violence in Iraq is causing deepening concern in Washington, both in the U.S. Congress and the Bush administration. Lawmakers of both parties are worried that the Iraqi go
2006年VOA标准英语（九月）
Todd: Hello! Jeanna: Hello! Todd: Hi, what's your name? Jeanna: Jeanna. Todd: OK, Jeanna, how old are you? Jeanna: I'm 15 years old. Todd: 15! OK, are you in high school? Jeanna: Yes, I am. Todd: OK. What do you think about high school? Jeanna: It's
原版英语对话1000个
BEIJING, Aug. 19 (Xinhua) -- China's steel output growth slowed in July and prices of steel products have continued to drop, according to data from the National Development and Reform Commission (NDRC). Crude steel production gained 4.2 percent year
英语新闻
Chinese shares posted their biggest one-day fall in a month yesterday, with indices closing more than 6 per cent lower after a late sell-off. 中国股市昨天出现一个月来最大单日跌幅，在尾盘抛售之后，沪深股指收跌逾6%。
英语新闻
Chinese stocks carved out their biggest gain in two months amid speculation that A-shares could be included in MSCIs global benchmarks. 由于市场猜测A股可能会被纳入MSCI明晟的全球基准，中国股市今日出现两个月来最大幅度
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