Apple has lightly refreshed its MacBook Air with the M5 chip, and it'll be available for preorder starting tomorrow (March 4) ahead of its formal launch on March 11. This story will be updated with preorder listings from the Apple Store and its retail partners as soon as they're live.
想要在太空实现金属构件的3D打印难度超乎想象。
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亦有基因治疗领域人士告诉界面新闻，此前业内认为基因治疗在理论上可以实现“一次性治愈”，这点能吸引到很多患者。但实际并非如此，病人首先担心的是安全性问题。他以血友病为例，尤其目前已经有凝血八因子、九因子等可及的蛋白替代疗法，患者对新疗法的安全性有更多期待。