如图是血液循环和气体交换示意图请据图回答1图中的g所指的是 内流 血.2由d到f处血液成分�生的变化是 .3心脏结构中心壁 Template




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tomski如图是血液循环和气体交换示意图请据图回答1图中的g所指的是 内流 血.2由d到f处血液成分�生的变化是 coloring