17.如图1是某人在一次平静�吸中肺内气压的变化曲线如图2是人体内的气体交换示意图请据图回答问题1如图1中表示吸气过程的曲线ab段 Template




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tomski17.如图1是某人在一次平静�吸中肺内气压的变化曲线如图2是人体内的气体交换示意图请据图回答问题1如图1中表示吸气过程的曲线ab段 coloring