洗手能否减�手上的细菌数量某校生物兴趣小组用盛有无菌培养基的培养装置进行探究甲同学设计了如图示的探究实验1甲同学洗手后在培养基上按了 Template




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tomski洗手能否减�手上的细菌数量某校生物兴趣小组用盛有无菌培养基的培养装置进行探究甲同学设计了如图示的探究实验1甲同学洗手后在培养基上按了 coloring