在筛选抗青霉素菌株时须在培养基中加入青霉素其作用是 A.筛选 b.诱变 C.既筛选又诱变 D.以上答案都不对——青夏教育精英家教�—— Template




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tomski在筛选抗青霉素菌株时须在培养基中加入青霉素其作用是 a.筛选 b.诱变 coloring