环割枝条形成枝瘤的实验证明了 A.有机物的输送管道在�皮里 b.�皮是输导水和无机盐的重要通道 C.没有�皮植物仍可正常生活 D.�皮 Template




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tomski环割枝条形成枝瘤的实验证明了 a.有机物的输送管道在�皮里 b.�皮是输导水和无机盐的重要通道 coloring