单项选择题

Questions 6 and 7 are based on the following news from the BBC. At the end of the news item , you will be given l0 seconds to answer each question. Now listen to the news. What’s the commission of the X - 43A prototype

A．To revolutionize research and develop speed.
B．To revolutionize travel and shatter speed records.
C．To revolutionize flight and explore outer space.
D．To revolutionize exploration and increase experienc

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热门试题

单项选择题

According to researchers, Richard Nixon’s death was ______.

A．caused by his heart problems.
B．indirectly linked to his wife’s death.
C．the inevitable result of old age.
D．an unexplainable accident.

填空题

historical

Questions 6 and 7 are based on the following news from the BBC. At the end of the news item , you will be given l0 seconds to answer each question. Now listen to the news. What’s the commission of the X - 43A prototype 您的浏览器不支持 audio 元素。

Questions 6 and 7 are based on the following news from the BBC. At the end of the news item , you will be given l0 seconds to answer each question. Now listen to the news. What’s the commission of the X - 43A prototype