如图表示体内的气体交换过程分析回答1图 是肺泡内气体交换.2d到c的血液变化是 血变为 血液中 增加.3两图中“→ 表示 的 Template




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tomski如图表示体内的气体交换过程分析回答1图 是肺泡内气体交换.2d到c的血液变化是 血变为 coloring