单项选择题

Questions 8 to 10 are based on the following news from the VOA. At the end of the news item , you will be given 10 seconds to answer each question. Now listen to the news. When did Erik Weihenmeyer scale North America’s highest peak

A．1995.
B．1997.
C．1998.
D．1999.

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单项选择题America’s technological universities and government laboratories are generally ______.

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Questions 8 to 10 are based on the following news from the VOA. At the end of the news item , you will be given 10 seconds to answer each question. Now listen to the news. When did Erik Weihenmeyer scale North America’s highest peak 您的浏览器不支持 audio 元素。