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  3. There may be other life forms in the universe because over 50 extrasolar planets

There may be other life forms in the universe because over 50 extrasolar planets

游客2023-09-01  30
问题 There may be other life forms in the universe because over 50 extrasolar planets were discovered in 2001. [br] We used to believe that life could not exist under extremely hot or cold environment.
选项 A、Y
B、N
C、NG
答案 A
解析 由题干关键词extremely hot or cold可将答案定位至第二个小标题下Life in the Extreme第一段第二句。Furthermore，it was thought that you would probably not find life where temperatures were extremely hot…or extremely cold…，原文中it was thought与题干used to believe同义，因此本题陈述正确。
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