【单选题】听力原文: The WHO has confirmed that at least three people have died of bird flu in Vietnam, the same virus that first emerged in Hong Kong in 1997 and killed six people. Hundreds of thousands of chickens...
【单选题】听力原文: Vietnam's prime minister has announced his plans to visit the United States next month. He'll be the first Vietnamese leader to travel to the US since the end of the Vietnam War. Prime Minister ...