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A set consists of all three-digit positive integers with the following properties. Each integer is of the form JKL, where J, K, and L are digits; all the digits are nonzero; and the two-digit integers JK and KL are each divisible by 9. How many integers are in the set?
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· 相关考点
1.6.5 整除的定义与判定 1.8.6 能被特殊数字整除的规律 考察角度四：能被9整除的规律&除以9求余数的技巧
以上解析由 考满分老师提供。
