Sir Alexander Fleming alighted on the antibiotic properties of penicillin while he was engaged on re

中文解释

亚历山大弗莱明爵士偶然发现了盘尼西林的抗生素特性,当时他正从事于一项性质完全不同的研究。

正在查询

Hiawassee coeducational agger archaeology sixty-five chromic acid current ratio shrink with fear arrange mechanically