In fact, I skipped one of the early assignments. This serves as

来源: EnLearner 于 2011-12-10 19:03:00 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (207 bytes)
回答: extra credit for YuGong too :-) 由 同学小薇 于 2011-12-10 18:58:15

 

In fact, I skipped one of the early assignments.

So this serves as a makeup for me. :-)

 

 

 

 

 

 

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