如图为人体心脏结构示意图请据图回答1心脏分四腔其中e是 与其相通的血管是a .2图中k是 瓣它的作用是 .3若从上肢 Template




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tomski如图为人体心脏结构示意图请据图回答1心脏分四腔其中e是 与其相通的血管是a .2图中k是 coloring