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单比化连比：甲乙的比是3:8，乙丙的比是4:5，甲乙丙的比是多少
小学数学：单比化连比：甲、乙的比是3:8，乙、丙的比是4:5，那么甲、乙、丙的比是多少？
小学奥数视频（私信关键词“奥数视频”获取下载）156/371
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