小明和哥哥去年的年龄比是5:8,今年他们的年龄之比不变.(  )

作者: tihaiku 人气: - 评论: 0
问题 小明和哥哥去年的年龄比是5:8,今年他们的年龄之比不变.(  )
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解析 小明和哥哥的年龄是同时增长的,但是两人的年龄之比并不是固定比值.

相关内容:小明,哥哥,年龄,今年

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