15.如图是人体气体交换与血液循环模式图据图回答1心脏有四个腔图中2是右心室内流静脉血心脏壁最厚的是4左心室心室与4 Template




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tomski15.如图是人体气体交换与血液循环模式图据图回答1心脏有四个腔图中2是右心室内流静脉血心脏壁最厚的是4左心室心室与4 coloring