In which of the following places can you often see this sign? A. In a park. B. In a school. C. In a ...
2022-10-09 15:05:39 197次 广东省东莞市2017届九年级上学期期中考试英语试卷 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
In which of the following places can you often see this sign?
A. In a park. B. In a school.
C. In a science museum. D. In a street.
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