如图是某一植物叶片的结构示意图请分析回答下列问题.1写出图中的数字代表的结构.1上表皮上表皮2栅栏组织栅栏组织3叶脉叶脉4海绵 Template




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tomski如图是某一植物叶片的结构示意图请分析回答下列问题.1写出图中的数字代表的结构.1上表皮上表皮2栅栏组织栅栏组织3叶脉叶脉4海绵 coloring