题目内容：
Since the earth looks like a ball, the sun can shine on only half of it at a time.
参考答案：【答案仅供学习，请勿对照自行用药等】
答案解析：
选择题：Since the earth looks like a ball, the sun can shine on only half of it at a ...
- 题目分类： 大学英语B级
- 题目类型：选择题
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