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PaO2/FiO2（PF）比值被广泛用于评估重症患者的呼吸衰竭情况，以指导通气策略和预后判断。然而，由于该指标需要侵入性动脉 ...

With over four years of experience writing in the housing market space, Robin Rothstein demystifies mortgage and loan concepts, helping first-time homebuyers and homeowners make informed decisions as ...

Andy Smith is a Certified Financial Planner (CFP®), licensed realtor and educator with over 35 years of diverse financial management experience. He is an expert on personal finance, corporate finance ...

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Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

Your GPA is obtained by dividing the total number of quality points by the total number of quality hours (for example: 45 quality points divided by 15 quality hours equals a grade point average of ...