到哪里找这数据去,如果不是碰巧有同学做这个研究,都没人告诉你。
                    •                    
                    重大科研成果,应该置顶,呵呵
                     -yasas- 
                    ♂                    
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                        02/17/2013 postreply
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                        02/17/2013 postreply
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                    你身体也太差了
                     -中航科工六院- 
                    ♂                    
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                        02/18/2013 postreply
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                        02/18/2013 postreply
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