标签：attempte 相关文章
By Carol Pearson Washington 16 April 2007 Watch Diabetes report Type 1 diabetes can affect anyone but it usually starts in people younger than 30. It is a lifelong disease, and there is no cure. But doctors recently tested a stem cell therapy that a
2007年VOA标准英语（四月）
By Efam Dovi Accra 12 June 2006 In Ghana, about 20 percent of teenage girls drop out of school, or fail to finish their exams. Authorities say many of them leave school because they have become pregnant. Activists say the girls are ostracized by soc
2006年VOA标准英语（六月）
By Tabinda Naeem Washington, DC 26 January 2007 watch Amber Alert report Dylan and Shasta Groene Every day thousands of children around the world are reported missing. Authorities in the United States have devised a special method to alert the publi
2007年VOA标准英语（一月）
President Obama has lifted restrictions on the use of federal money for research using embryonic stem cells. Some researchers are already making progress using stem cells from umbilical cord blood, which entails no controversy since there is no dest
VOA标准英语2009年(三月)
By Deborah Tate Washington 19 July 2006 watch Bush Stem Cell report The U.S. Senate has approved and sent to President Bush a bill that would allow federal funding of embryonic stem cell research. The president opposes the measure on moral grounds,
2006年VOA标准英语（七月）
By Carol Pearson Washington 27 March 2007 watch Heart Stem Cell report It is being hailed as a major medical breakthrough: cardiologists are using adult stem cells, not the controversial embryonic stem cells, to rejuvenate the hearts of patients who
2007年VOA标准英语（三月）
By David McAlary Was 16 August 2006 Artist's rendition of solar system There may soon be three new planets in our solar system. The expansion would be the result of a proposed new definition of what a planet is. The change is controversial, but if a
2006年VOA标准英语（八月）
By Peter Heinlein United Nations 20 October 2006 The U.N. General Assembly has suspended voting until next week in a fiercely fought contest between Venezuela and Guatemala for a seat on the Security Council. Thirty-five rounds of balloting have pro
2006年VOA标准英语（十月）
By Melinda Smith Washington 27 June 2007 President Bush speaking at the White House about stem cell research, 20 Jun 2007 Some U.S. scientists say President Bush's veto last week of federal funding for stem cell research raises questions about the f
2007年VOA标准英语（六月）
U.S. President Barack Obama has lifted restrictions on federal funding for medical research using human embryonic stem cells. Mr. Obama says it is part of a broader effort to limit political interference in science. President Barack Obama signs an E
VOA标准英语2009年(三月)
By Paula Wolfson Guatemala City 12 March 2007 President Bush says he is hopeful there can be U.S. congressional action by August on immigration reform. VOA's Paula Wolfson reports the controversial issue dominated his talks in Guatemala City with Gu
2007年VOA标准英语（三月）
By Al Pessin Pentagon 05 October 2006 The U.S. military is giving the West African island nation of Sao Tome and Principe an $18 million system to help it keep track of activity in its territorial waters and nearby ocean areas. The military hopes th
2006年VOA标准英语（十月）