2. 外语
  3. What have Bill Stone and his teams accomplished? Why does NASA want to explore Europa according to the passage?

What have Bill Stone and his teams accomplished? Why does NASA want to explore Europa according to the passage?

admin2012-10-11  54
问题 What have Bill Stone and his teams accomplished?
Why does NASA want to explore Europa according to the passage?
选项 A、Because it is the only one frozen moon of Jupiter.
B、Because it is a possible place for life in solar system.
C、Because it is the only place where DepthX is able to explore.
D、Because it is a place with hostile environments.
答案B
解析 根据题干中的NASA want to explore Europa，可以定位到第三段的第三句。根据这句话可知美国国家航空和宇宙航行局希望有一天能够用像比尔发明的这样的机器人去探测木卫二，它是木星的一颗行星，而且是我们太阳系中最适合生命存在的星球之一。也就是说，宇航局想要探测木卫二是因为那里适合生命存在。文中没有提到Europa是木星的唯一一颗行星，而且这也不是宇航局探测木星的原因，故可排除A；文中没有提到这里是DepthX所能探测的唯一地方，故可排除C；文中没有提到这是一个有着恶劣环境的地方，故可排除D。
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