1939年美国�学家鲁宾和卡门利用某种植物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 Template




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tomski1939年美国�学家鲁宾和卡门利用某种植物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 coloring