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不能简单的将较小的归于较大的一档仅仅因为这次省了钱，还有可能更小的归于此档时价格更低In Reply To:为什么我这样推不对呢? Posted by:sysu_wwl at 2008-11-18 20:47:34 这不具有贪心的子结构特征，前后是会影响的 ！ Followed by:
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