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标题: 请教TS7-26 [打印本页]

作者: kenlily 时间: 2005-10-9 07:02 标题: 请教TS7-26

Q26:
K is a set of integers such that if the integer r is in K, then r + 1 is also in K. Is 100 in K?
(1) 50 is in K.
(2) 150 is in K.

不太明白讲什么,

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