单词：acidity-basicity
单词：acidity-basicity 相关文章
Obama backs Mexico's war on drugs 奥巴马回应墨西哥毒品战争 US President Barack Obama has said the US is a full partner with Mexico in its fight against the drug cartels. Speaking in Mexico City, he said the US must stem （组织） the flow of guns acr
英语新闻
By Ade Astuti, Nia Sutadi and Susy Tekunana Washington 15 October 2007 In Washington, D.C. and across the United States, guided tours on Segway scooters are becoming increasingly popular. Producers Ade Astuti, Nia Sutadi and Susy Tekunana tell us why
2007年VOA常速英语（十月）
Barack Obama will make history on January 20 when he is inaugurated as the 44th president of the United States and becomes the first African-American to hold the job. President-elect Barack Obama speaks to reporters in Washington, 12 Jan 2009 In the
VOA标准英语2009年(一月)
MillionsOfStatelessPeopleDeniedBasicRights The UN High Commissioner for Refugees has launched a global campaign to raise awareness of the plight of millions of stateless people around the world. The UNHCR says an estimated 12 million people live in a
VOA标准英语2011年(九月)
Alabama City Remembered for Climactic Battle of Civil Rights Movement Weeks after a hurricane delayed the dedication of a new national memorial to the late civil rights leader Martin Luther King Jr., President Obama will lead the ceremonies on Sunday
VOA标准英语2011年(十月)
By Naomi Schwarz Bo, Sierra Leone 07 August 2007 In Sierra Leone, where presidential and parliamentary elections are scheduled for August 11, a brand new party has entered the political scene long dominated by the People's Party, or SLPP, and the All
2007年VOA标准英语（八月）