Without the sun, there would be no . The change of day and night is caused by .

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问题 Without the sun, there would be no ______.
The change of day and night is caused by ______.

选项 A、hours
B、lighted side
C、dark side
D、the sun

答案D

解析白天和黑夜的变化都是因为太阳引起的，所以应该选D答案。

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大学英语三级A级

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