2. 外语
  3. What can we learn about Dr. Marcy from the passage? Dr. Marcy thinks that life may exist in the 55 Cancri system because ______

What can we learn about Dr. Marcy from the passage? Dr. Marcy thinks that life may exist in the 55 Cancri system because ______

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问题 What can we learn about Dr. Marcy from the passage?
Dr. Marcy thinks that life may exist in the 55 Cancri system because ______.
选项 A、he has found the system similar to the solar system
B、he has discovered an Earth-like planet there
C、he has discovered a rocky planet there
D、he has found signs of life in the system
答案A
解析 根据Dr．Marcy的理论以及他观察到的内容可以推测出他认为这个星球可能有生命的理由。
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