◎ 题干
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.
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“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. …”主要考查了你对  【可数名词(单数名词,复数名词)】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。