一株植物经受如下处理 把叶片×曝露在为放射线同位素所标记的co2中数小时然后将组织Ⅲ和Ⅳ分别从茎和根上切下来叶片Ⅰ和Ⅱ也被切下来你预期会 Template




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tomski一株植物经受如下处理 把叶片×曝露在为放射线同位素所标记的co2中数小时然后将组织Ⅲ和Ⅳ分别从茎和根上切下来叶片Ⅰ和Ⅱ也被切下来你预期会 coloring