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  3. What is Alvin? Which of the following statements is NOT a fact about Alvin?

What is Alvin? Which of the following statements is NOT a fact about Alvin?

admin2009-06-15  70
问题 What is Alvin?
Which of the following statements is NOT a fact about Alvin?
选项 A、It can carry explorers as deep as 6,500 meters.
B、It has played a key role in various important undersea expeditions
C、It was launched in the sixties of the twentieth century.
D、It has been used for more than 40 years.
答案A
解析 文章第一段从第三句开始说，科学家正在研制一艘可将研究人员带到6，500米深处的潜水装置，而它将替代Alvin，因为Alvin只能潜到4，500米深处。A不是事实，所以是正确选择。
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