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Госдума приняла закон о запрете депортации одной категории иностранцев14:59。业内人士推荐新收录的资料作为进阶阅读
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The mathematical awkwardness of harmonics-based tuning systems has caused Western musicians a lot of pain over the past thousand years. Depending on your starting pitch, some intervals can be perfectly in tune, but others can’t be. And the more harmonically complex you want your music to be, the worse the tuning issues become.，详情可参考新收录的资料
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