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去年年底的时候，杨幂表示自己要给大家带来一个全新的自己，准备在新的一年用作品跟大家说话。
2024年12月15日，比如，经济下行压力较大的2022年，财政部在2021年12月提前下达2022年新增专项债券额度1.46万亿元，较2021年提前3个月，2022年3月底前用于项目建设的3.45万亿元全部下达完毕。新增专项债基本在上半年完成发行，速度之快史无前例。这对当年带动扩大社会投资，推动经济运行整体好转，发挥重要作用。
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Ruthenium and iridium complexes are advantageously tunable photoredox catalysts, but the expense of these precious metals is a drawback to their use. Lighter, more abundant metals have been considered unsuitable because of their anticipated rapid relaxation from photoexcited states. Chan et al. report that a cobalt complex with conventional bipyridyl ligands manifests a surprisingly long excited state lifetime, which they attribute to Marcus inverted region behavior (see the Perspective by Yaltseva and Wenger). The Earth-abundant metal is effective at photoredox coupling of aryl amides with aryl boronic acids and more generally opens the door to greater sustainability in this catalyst class.
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