单项选择题

Questions 23～25 are based on the following news from the BBC or the VOA. At the end of the news item, you will be given 15 seconds to answer the three questions.
Now listen to the news.
Where is the researches based in

A．Arizona & Colorado
B．Arizona & California
C．Colorado &California
D．Arizona & Georgia

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单项选择题

单项选择题

Questions 23～25 are based on the following news from the BBC or the VOA. At the end of the news item, you will be given 15 seconds to answer the three questions.Now listen to the news. Where is the researches based in 您的浏览器不支持 audio 元素。