给严重缺氧的病人输氧时要在纯氧中混入一定量的二氧化碳气体以维持�吸中枢的兴奋这属于 A神经调节 b体液调节 c激素调节 d内分泌 Template




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tomski给严重缺氧的病人输氧时要在纯氧中混入一定量的二氧化碳气体以维持�吸中枢的兴奋这属于 a神经调节 b体液调节 coloring