疯牛病的病原体是朊病毒它是一种蛋白质分子在牛的体内含有正常生理功能的蛋白质如图表示朊病毒的增殖过程 → Template




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tomski疯牛病的病原体是朊病毒它是一种蛋白质分子在牛的体内含有正常生理功能的蛋白质如图表示朊病毒的增殖过程 → coloring