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A.The planet must be as big and heavy as the e
问题详情
A.The planet must be as big and heavy as the earth.
B.Proper conditions are essential to the existence of life.
C.Double stars can provide steady light and heat.
D.The distance between a planet and its sun should be right.请帮忙给出正确答案和分析,谢谢!
参考答案
正确答案:C
解析:Which of the following statements is incorrect for a planet supporting life?
四个选项都描述某颗行星的情况,由此可以猜测,本题考查内容可能是关于行星中有存在生命所需具备的某种条件。从第二段的描绘中可以找到答案。“First, eliminate those stars that are not like our sun. Next...already died out...”C)选项所说的双恒星可以提供稳定的光与热并不是有生命的星球必需的条件,因为地球只有太阳一个恒星,光和热就已经适宜。故正确答案为C)。