题目内容
What does the writer think is needed to solve our industrial problem
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The author believes that life on other planets can take on forms ______ because even life on our own planet assumes such strange and various forms.
Modern theories of the development of stars suggest that almost every star has some sort of family of planets.
Even intelligent life on earth couldn’t send radio waves half a century ago. So it would be impossible for any intelligent beings to exist on any other planet at that time.
The chemical structure of a creature from an earth - type planet will very likely be ______.
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