... <看更多>

Sup 是what's up 的縮寫，不論是當面對談或是在網路上聊天都可使用。 而對於sup的回應就有很多種，例如: - I'm good. How about you? ( ... ... <看更多>

First, remind yourself of what sup(A) means. sup(A) is the least upper bound of A. That is, it's the number s such that every element of A is less than or ... ... <看更多>