为了研究细菌对青霉素抗药性形成的机理有人设计了如下实验方案 步骤1取培养皿a若干a1a2a3 加入普通细菌培养基取培养皿b Template




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tomski为了研究细菌对青霉素抗药性形成的机理有人设计了如下实验方案 步骤1取培养皿a若干a1a2a3 加入普通细菌培养基取培养皿b coloring