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好像需要换胎。 那里可以买到车胎（内、外）呢？大概多少钱？ thx!

自行车的轮胎破了，请问Ottawa那里可以修理啊？大概多少钱呢？ :)

ding

down掉了吗？

ding!

买书 Viega and McGraw, Building Secure Software (Addison-Wesley, 2001). 旧书或者是复印的都可以。 悄悄话联系。

Viega and McGraw, Building Secure Software (Addison-Wesley, 2001). 旧书或者是复印的都可以。 悄悄话联系。

I am a new graduate, and I want to 4 courses for the fall term: 1.ELG5196 Neural Networks and Fuzzy Systems 2.SYSC5004F Mathematical Programming for Engineering Applications 3.CSI5173 Data Networks 4.CSI5115 Database Analysis and Design I come form Computer Science in the BA, so do not...