they can research all they want
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送交者: kma 于 2013-07-09, 19:28:14:
回答: 貌似这个基本上是个统计分析问题,懂数学方法的经济学家搞这个,并不算出格吧。 由 asasasa 于 2013-07-09, 19:25:18:
using all the data available, but to get such kind of conclusion, i am sorry, i insist participation of some "real" scientists
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