单词：quadratic critical state model
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Teacher Uses Music to Make Math Fun, Cool Making math fun The voice heard in the video belongs to mathematics teacher Jake Scott. Most of the performers are his students. Watching videos is not part of their daily routine but it is one of the essenti
VOA标准英语2013年(一月)
Situation Critical 十万火急 by Kevin Lustig In some jobs, danger can appear at any moment. In the blink of an eye, the routine can become perilous. This month, the National Geographic Channel shows us what happens when a normal situation becomes
常春藤解析英语
The UN has just issued a report saying that six million people in Myanmar need food right now. How critical is the situation? It's a real paradox, because in the same year that Cyclone Nargis devastated the, what had been the rice bowl of Myanmar, th
访谈录2009
In Houston, Flight director Kranz is trying to make sense of the barrage of information. I am completely surrounded with reports coming in that I dont fully understand, but frankly, problems are our business, and I thought we are going to solve these
国家地理2007年
By Greg Flakus Houston 05 March 2008 Hillary Clinton made a stunning comeback in Tuesday's primaries and caucuses, winning decisively in Ohio and Rhode Island and coming out on top of a close race in Texas. John McCain won all four states, to clinch
VOA标准英语2008年（三月）
By Melinda Smith Washington 06 September 2007 In 2006, the World Health Organization issued a report that a critical shortage of doctors and nurses has contributed to severe health problems in Africa and parts of Asia.The report said at least four mi
2007年VOA标准英语（九月）
By Kane Farabaugh Cincinnati, Ohio 26 October 2006 watch report Ohio Battleground The midwestern state of Ohio was a key battleground state in the 2004 election. President George Bush ultimately won the state, a victory that assured his second term
2006年VOA标准英语（十月）
North Darfur State Lacks Critical Medical Services The aid group Doctors without Borders has sharply reduced essential healthcare services in parts of Sudans North Darfur State. The group, also known as MSF, says it has no more drugs or medical suppl
VOA标准英语2012年(五月)
California Attracts Cars of the Future The hills on the west side of Los Angeles are the perfect place for Scott Painter to experience his passion for cars, especially if they are fast and cutting edge. I've had pretty much all the electric vehicles
VOA标准英语2012年(十二月)
By Sean Maroney Kabul 18 November 2009 Secretary of State Hillary Clinton greets embassy staff during a 'meet and greet' event at the US embassy in Kabul, 17 Nov 2009 U.S. Secretary of State Hillary Clinton is in Afghanistan to join foreign dignitar
VOA标准英语2009年(十一月)
Kerry: Tunisia's New Constitution is Model for Arab World 克里表示突尼斯新宪法是阿拉伯世界楷模 TUNIS U.S. Secretary of State John Kerry says Tunisia's new constitution is a model for political reform in the Arab world. Kerry made an
VOA标准英语2014年(二月)
LULU GARCIA-NAVARRO, HOST: It's been many months since hurricanes Irma and Maria hit the Virgin Islands, but hospitals there are still recovering. Even now, patients are being flown to the U.S. mainland for certain surgeries and specialized care, as
2018年NPR美国国家公共电台2月
STEVE INSKEEP, HOST: Not for 20 years has there been a Democratic governor in Nevada. It's an increasingly blue state in presidential elections. The governor's office has stayed red, but this year, Republicans face a challenge, as NPR's Leila Fadel r
2018年NPR美国国家公共电台10月
RACHEL MARTIN, HOST: President Trump meets China's leader, Xi Jinping, at the G-20 summit in Argentina tomorrow. The two will, obviously, have a lot to discuss - in particular, the trade war that doesn't seem to have an end in sight. As NPR's Rob Sch
2018年NPR美国国家公共电台12月
By Gary Thomas Washington 09 November 2007 At the heart of the current political crisis enveloping Pakistan is Pervez Musharraf's insistence on holding on to his military rank as chief of the army while remaining president. The military has been the
VOA常速英语2007年（十一月）
BEIJING, May 12 (Xinhuanet) -- Italian archaeologists(考古学家) are digging the remains of Lisa Gherardini, a 16th-century woman who is widely believed to be the model for the famous portrait Mona Lisa, AFP reported on Wednesday. The team of hist
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In the Pacific state of Hawaii, U.S. President Barack Obama on Sunday told leaders of the 21 Asia Pacific Economic Cooperation economies that the region will be key to U.S. economic recovery. With much of the formal summit activity, including a worki
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By Scott Stearns Dakar 08 October 2009 Cameroon President Paul Biya (file photo) Authorities in Cameroon have closed a private FM radio station that has been broadcasting illegally from the capital for several months. The station was highly critical
VOA标准英语2009年(十月)
An increasingly popular business model lets participating companies give to charity while making a profit. But the approach is blurring the lines between for-profit and not-for-profit organizations and raising questions about the real drivers behind
英语新闻