35.美国�学家鲁宾和卡门采用同位素标记法进行了如下两组实验 第一组h218o co2 →某种植物→18o2 第二组h2o C18o2→ Template




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tomski35.美国�学家鲁宾和卡门采用同位素标记法进行了如下两组实验 第一组h218o co2 coloring