Regarding the urgent care of the patient with acute respiratory insufficiency; you have experience with non-invasive mechanical ventilation in covid19+ patients or recommend exclusive management with oxygen therapy / high flow / endotracheal intubation? Thank you. / 关于急性呼吸衰竭患者的紧急护理:您是否有在covid19 +患者身上进行无创机械通气的经验，是否建议通过氧疗/高流量/气管插管进行针对性护理(不太确定能否这样翻译)。 非常感谢