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七年级生物下册4.4.4《输血与血型》情景导入：输血与血型素材（新版）新人教版.ppt

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情景导入：输血与血型,01,看一看、议一议,人的血型一般分为：A型、B型、O型、AB型，你知道自己属于哪种血型吗？,02,看一看、议一议,图为ABO血型的测定图，你知道血型测定的原理吗？,03,看一看、议一议,读一下车上的字！ 你知道献血有什么要求吗？,Q,A,&,学习了本节课的知识，上述的问题你就能迎刃而解了！,

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