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22 seconds ago · Alexander Fleming was studying bacteria in a Petri dish when he accidentally left the dish uncovered, allowing mold to grow on it. He noticed that the mold seemed to inhibit the growth of bacteria around it, leading to the discovery of penicillin and the development of the first antibiotic.
1 day ago · (改为 被动语态) Vegetables in the garden by us last year. 83．（2分）Penicillin was discovered by Alexander Fleming. (改为—般疑问句) penicillin by Alexander Fleming 84．（2分）It was surprising for her to pass the English test yesterday.
