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2019-11-15"8,9"的加减法2

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gaoyixuan
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Published on 17 Nov 2019 / In Education environment

2019-11-15"8,9"的加减法2

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刘 老师
刘 老师 6 years ago

涂色的时候只需要涂小鱼的头哦,把整条鱼都涂上颜色算式都看不见啦。

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