7.如图为人的�吸和血液循环关系图请根据图完成下列问题.1在心脏四个腔中壁最厚的是�左心室.2若静脉注射药物则药物经过心脏各腔的 Template




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tomski7.如图为人的�吸和血液循环关系图请根据图完成下列问题.1在心脏四个腔中壁最厚的是�左心室.2若静脉注射药物则药物经过心脏各腔的 coloring