the expolsion of the sun cannot be heard,there__no air between the earth's atmosphere and the sun.

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• the expolsion of the sun cannot be heard,there__no air between the earth's atmosphere and the sun.
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• the expolsion of the sun cannot be heard,there__no air between the earth's atmosphere and the sun.a.having b.is c.are d.being 选什么啊 为什么
• The explosion on the sun cannot be heard,there ___ no air between the earth's atmosphere and the sun.
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