送交者: xinlihuaxys 于 2008-12-12, 01:37:23:

回答: of course, you question is ill-defined at the first place. 由 steven 于 2008-12-12, 01:31:57:

• Take the close set of real [1,2], there are infinite numbers of infinite subsets - steven (283 bytes) 2008-12-12, 01:44:37 (283618)
• 教你一个well-define的问题: 5 和6 谁大 (无内容) - 008 (0 bytes) 2008-12-12, 01:40:54 (283616)

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