1. General Chemistry 9th edition By R.H. Petrucci $ c, N, h$ P. t% H7 G! b. y2. Physics for scientist and engineers 7th edition2 g+ [5 ?- O, l1 r" l
3. Calculus early trans. 6th edition by James& b* h* g6 |) [) C
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发表于 2009-9-13 09:47
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