如图是血液循环和气体交换示意图请据图作答1图中的�是左心室左心室�是肺静脉肺静脉a左心室 主动脉 b左心室肺静脉 c Template




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tomski如图是血液循环和气体交换示意图请据图作答1图中的�是左心室左心室�是肺静脉肺静脉a左心室 主动脉 b左心室肺静脉 coloring