植物体co2的吸收和释放随co2浓度的变化规律如图所示 1由图知ab段影响光合作用强度的主要因素是 2图中a点的含义是 3 Template




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tomski植物体co2的吸收和释放随co2浓度的变化规律如图所示 1由图知ab段影响光合作用强度的主要因素是 2图中a点的含义是 coloring