Millions of stars are______. Some two thousand million years ago, the mountain on the sun was raised probably because______.

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问题 Millions of stars are______.
Some two thousand million years ago,  the mountain on the sun was raised probably because______.

选项 A、a large tidal wave of a star travelled over the surface of the sun
B、another star happened to come near the sun
C、the sun and the moon raised the tides on the earth
D、the star moved away from the sun

答案B

解析
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