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昨日纯碱主力合约2409大幅微下跌，收于1772元/吨，下跌62元/吨，跌幅3.38%。现货方面，昨日纯碱华东、华中地区轻重碱下跌50-100元/吨。整体来看，纯碱产量持续攀升，部分检修损失量被新增产

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很多想怀孕的人追求一切能够增大怀孕几率的方法，在同房的时候，选择一个容易怀孕的姿势肯定是一个不错的方法。说到这里老司机又要发车了，在众多的同房姿势中，小编来为您推荐最适合怀孕的几种！怀孕的最佳同房姿势

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