He had persuaded his science teacher to help him make a makeshift rocket. Somehow, he had managed to get his hands on the ingredients for gunpowder - potassium nitrate, sulphur and charcoal.
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中医药是中华民族的瑰宝，也是世界人民的财富。世界需要中医药，中医药也将普惠世界。要坚定文化自信，把中医药这一祖先留给我们的宝贵财富继承好、发展好、利用好，让中医药以新的姿态站到世界医学舞台，增进人类健康福祉。，这一点在搜狗输入法下载中也有详细论述
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