物体进出细胞的方式中自由扩散区别于协助扩散的是a.不需要载体 b.由高浓度�低浓度扩散 c.由低浓度�高浓度扩散 D.需要载体——青夏教育 Template




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tomski物体进出细胞的方式中自由扩散区别于协助扩散的是a.不需要载体 b.由高浓度�低浓度扩散 c.由低浓度�高浓度扩散 coloring