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【搬运KhanAcademy】血液系统——What's Inside of Blood?
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https://www.youtube.com/watch?v=5MOn8X-tyFw 1.从抽血的过程引入主题:抽血——晃动试管(使血液和抗凝剂混匀)——送检——离心 2.离心后的试管:血浆,白细胞和血小板,红细胞 3.血浆,血清的不同 4.血细胞比容的定义和异常的含义 Rishi is a pediatric infectious disease physician and works at Khan Academy.
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