Ian Youngs,Culture reporterand
More than 22,000 Covid vaccine-harm claims have been made - most relating to the AstraZeneca jab
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经济增长既需要生产要素的积累，也要依托全要素生产率持续提高。提升全要素生产率，关键在于促进各类先进要素向发展新质生产力集聚。
Chip giant Nvidia has reported record annual revenue of $215.9bn (£159.1bn), despite a wave of investor scepticism about the massive amounts of money being spent on artificial intelligence (AI) technology.