# 题目内容

According to the passage, if two supernovas are observed and one of those supernovas is brighter than the other, scientists can conclude that
• Athe brighter supernova is moving closer to our galaxy at a higher speed
• Bthe precise location of the supernova is measurable
• Cthe brighter supernova may be closer to our own galaxy
• Dthe brighter supernova is farther away from Earth by a distance that is roughly inversely proportional to the dim supernova
• Ethe distance between the supernovas and our own galaxy is inversely proportional

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