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.如下表示朊病毒的增殖过程. → 下列 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.如下表示朊病毒的增殖过程. → 下列 coloring