回复：谢谢您的答复！我也认为是这四种。简称为相离，相交，包含和相等。

来源: jinjing 于 2010-07-23 12:55:37 [] [旧帖] [给我悄悄话] 阅读数 : (162 bytes)

Ha,interesting,my answer was totally for another question.
At first,I wonder why did you ask so simple question,,,,maybe you want to know deeper....So I did...

所有跟帖： 

• yes, you are right. i want to know deeper ones coming. -皆兄弟也- ♂ 给 皆兄弟也 发送悄悄话 皆兄弟也 的博客首页 (0 bytes) () 07/23/2010 postreply 15:15:47

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