单词:Heister's diverticulum
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Major discoveries don't happen very often. Furthermore, these discoveries rarely cause scientists to re-examine something they once thought was true. This month, National Geographic Channel explores a mystery that will do just that. China's Mystery M
INTRODUCTION TO ACT I Today on TUNING IN THE U.S.A., we are on a train going to Washington, D.C. Ellen Stewart is taking Alexandra Pappas to visit the nations Capital. They are, in many ways, like other tourists. They want to visit the Air and Space
It is often said that cats have nine lives, that they are lucky enough to escape from danger again and again. Here is a science fiction tale about how one such lucky escape by a cat led to a discovery that was able to change the course of people's l
By Jeff Custer Washington, D.C. 25 August 2006 watch Museum report The National Museum of American History in Washington, D.C. will soon undergo a major renovation. But officials have announced a plan to keep some of the institution's most significa
By Carolyn Weaver New York, NY 30 January 2007 watch Ayaan Hirsi Ali part 2 report In 1992, Somali-born feminist Ayaan Hirsi Ali was forced by her family into an unwanted marriage. On her way to live with her new husband in Canada, she claimed polit
By Efam Dovi Accra 24 November 2006 In Ghana, health authorities say they have taken a major step towards finding treatment for HIV/AIDS and other diseases by using local, traditional medicines. An estimated 4,000 of the country's 20 million people
By Benjamin Sand Irbil, Iraq 25 October 2006 Iraqi Prime Minister Nouri al-Maliki is promising a major crackdown on illegal militias, which are blamed for widespread sectarian violence. During a nationally televised speech Maliki also sharply reject
By Carolyn Weaver Washington, DC 30 August 2006 watch Peacekeeper report Peacekeepers stand guard The U.N. Security Council resolution on ending the month-long war between Israel and Hezbollah called for adding up to 13,000 troops to the 2,000 membe
By Katherine Cole Washington 25 September 2007 For decades, the small town of Sisters, Oregon, has been a favorite vacation spot for people who enjoy spending time outdoors. Whether it's winter skiing, or hiking, mountain biking or bird watching on t
By Gary Thomas Washington 20 March 2007 The abrupt removal of Pakistan's chief justice has sparked a political firestorm around President Pervez Musharraf. Critics charge the president's decision to remove the judge was politically motivated. As VOA
The United States said Monday the government of Zimbabwe's President Robert Mugabe cannot be considered legitimate in the absence of a presidential runoff election. In the wake of opposition candidate Morgan Tsvangirai's forced departure from the c
A high-level panel led by former South African President Thabo Mbeki has begun work exploring a possible African-led solution to the crisis in Darfur. The panel's opening session heard strong calls for a deferment of International Criminal Court war
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By Greg Flakus Merida, Mexico 13 March 2007 Merida, Mexico, is the last stop on President Bush's tour of Latin America. There he will meet with Mexican President Felipe Calderon, who shares many of Mr. Bush's views on free markets, trade and develop
A small corner shop in suburban Sydney is an unlikely place to hear the horrors that force people from their homes and into the devious and dangerous world of people smugglers. Hassan Abotbeek fled Iraq and arrived in Australia by boat more than seve
By Marissa Melton 09 February 2007 Child laborers in Benin Activists, U.S. government representatives and scholars gathered in Washington Thursday to discuss human trafficking, not sex-trafficking, which is the most talked-about aspect of the industr
LONDON, Aug. 9 (Xinhua) -- Chen Ruolin collected a high 422.30 points for the title of women's 10m platform diving at London Olympic Games on Thursday. It is the 200th gold medal China won from all the summer Olympic Games it participated in. Brittan
New Supercomputer Could be World's Fastest Scientists at the Oak Ridge National Laboratory in the U.S. state of Tennessee have unveiled what could be the worlds fastest supercomputer. The new computer, named Titan, is capable of making more than 20,0
By Kari Barber Dakar 11 March 2007 Senegalese President Abdoulaye Wade Senegal's highest court has certified a first-round victory by incumbent PresidentAbdoulaye Wade in last month's presidential election, dismissing complaints of irregularities by
By Lisa Schlein Geneva 09 May 2007 The human rights organization, Amnesty International, has presented an appeal from 147 countries to the United Nations to maintain an independent and effective system of human rights experts. A petition signed by mo