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：
The real challenge was managing the economics while bootstrapping the business without investors. Figuring out how much to invest in marketing versus distribution and how to approach retailers without overspending. Balancing growth with limited resources forced me to prioritize, experiment and get creative with every dollar.
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Did she think about quitting at that point?
SAT problem with 14 variables and 126 clauses
换言之，虽然城乡、年龄间存在AI使用鸿沟，但高龄老人一旦开始使用AI，黏性却更大、频次更高，同样，农村地区老人一旦开始使用AI，高活用户占比反而也更高。