题目内容
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[主观题]
Which of the following characteristics of radio galaxies is mentioned in the passage?A.The
Which of the following characteristics of radio galaxies is mentioned in the passage?
A.They are a type of elliptical galaxy.
B.They are usually too small to be seen with a telescope.
C.They are closely related to irregular galaxies.
D.They are not as bright as spiral galaxies.
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