取两种不同的海绵动物使其细胞分散然后将这些细胞掺在一起混合培养�现只有同种胞才能结合这一事实体现了a.细胞的接触�制b.细胞识别c Template




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tomski取两种不同的海绵动物使其细胞分散然后将这些细胞掺在一起混合培养�现只有同种胞才能结合这一事实体现了a.细胞的接触�制b.细胞识别c coloring