4.植物细胞膜对某种物质的运输方�如图中箭头所示�点的数量表示某物质的浓度该物质可能是 A.叶绿素 B.生长素 c.纤维素 D.胡 Template




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tomski4.植物细胞膜对某种物质的运输方�如图中箭头所示�点的数量表示某物质的浓度该物质可能是 a.叶绿素 b.生长素 coloring