[=carboxyl-teminal region of an lg chain]免疫球蛋白ig链羧基未端区

Broadcast: Jan 29 2003 Two senior U.N. officials warn the HIV/AIDS pandemic in southern Africa is changing the nature of 1) famine in the region and is 2) unleashing a disaster that threatens the exis

发表于:2018-12-08 / 阅读(75) / 评论(0) 分类 VOA2003(上)-健康之旅

By Brian Padden Irbil, Iraq 23 August 2007 The electricity shortage in Iraq continues to plague the country. Power blackouts have become a telling symbol of the difficulties Iraq's government and the United States are having in improving life for ord

发表于:2019-01-13 / 阅读(82) / 评论(0) 分类 2007年VOA标准英语(八月)

By Derek Kilner Nairobi 06 February 2008 Two explosions have killed at least 20 people in the port town of Bosasso in the semi-autonomous Puntland region of Somalia. As Derek Kilner reports from VOA's East Africa Bureau in Nairobi, Puntland has gener

发表于:2019-01-31 / 阅读(66) / 评论(0) 分类 VOA常速英语2008年(二月)

By Douglas Bakshian Manila 08 October 2007 The Asian Development Bank says Asia and the Pacific are behind in meeting certain parts the United Nation's Millennium Development Goals. A new report by the ADB and the U.N. Development Program says progre

发表于:2019-01-31 / 阅读(72) / 评论(0) 分类 2007年VOA常速英语(十月)

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

发表于:2019-02-08 / 阅读(60) / 评论(0) 分类 英语新闻

Residents of the breakaway Georgian region of Abkhazia voted for a new president Friday, three years after Russia recognized the region, and another breakaway area, South Ossetia, as independent states. Three candidates are hoping to replace Presiden

发表于:2019-02-18 / 阅读(71) / 评论(0) 分类 英语新闻