Most foreign visitors to Beijing simply run out of time before they realize it, for so much of inter

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• 原核细胞与真核细胞的形态结构千差万别，但都有相似的基本结构，如细胞膜、细胞质和与遗传有关的核物质。这反映了细胞的[]A．差异性B．统一性C．多样性D．单一性-高一生物
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• 下列关于细胞共性的描述正确的是[]A．所有细胞内都含有糖原B．细胞都能进行分裂和分化C．细胞都具有细胞质和细胞膜D．用龙胆紫溶液染色细胞，都能观察到深色的染色体-高三生物
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