Artificial Intelligence
arstechnica.com
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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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经过多年发展和积累，我国在提升全要素生产率方面已拥有诸多有利条件和基础：