a:1,6,7,12.b:2,5,8,11...,c:3,4,9,10,15.三个数列1999在哪一数列?
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![a:1,6,7,12.b:2,5,8,11...,c:3,4,9,10,15.三个数列1999在哪一数列?](/uploads/image/z/119866-58-6.jpg?t=a%3A1%2C6%2C7%2C12.b%3A2%2C5%2C8%2C11...%2Cc%3A3%2C4%2C9%2C10%2C15.%E4%B8%89%E4%B8%AA%E6%95%B0%E5%88%971999%E5%9C%A8%E5%93%AA%E4%B8%80%E6%95%B0%E5%88%97%3F)
a:1,6,7,12.b:2,5,8,11...,c:3,4,9,10,15.三个数列1999在哪一数列?
a:1,6,7,12.b:2,5,8,11...,c:3,4,9,10,15.三个数列1999在哪一数列?
a:1,6,7,12.b:2,5,8,11...,c:3,4,9,10,15.三个数列1999在哪一数列?
第一数列每个数除以6余1
第二数列每个数除以6余2或5
第三数列每个数除以6余3或4
而1999除以6余1,所以在第一数列中啊!