美国�学家斯图尔德把胡萝卜的韧皮部细胞分离出来放入人工配制的培养基中培养结果竟获得许多完整的植株这些植株的特点是 A.彼此间的 Template




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tomski美国�学家斯图尔德把胡萝卜的韧皮部细胞分离出来放入人工配制的培养基中培养结果竟获得许多完整的植株这些植株的特点是 a.彼此间的 coloring