下图为人体血液循环中某物质含量的变化情况如果i代表肺泡外的毛细血管Ⅲ代表组织细胞处的毛细血管则此物质最可能是 A.氧气b.二氧化碳c Template




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tomski下图为人体血液循环中某物质含量的变化情况如果i代表肺泡外的毛细血管Ⅲ代表组织细胞处的毛细血管则此物质最可能是 a.氧气b.二氧化碳c coloring