سؤال قراءة ستيب محلول — فهم التفاصيل (تدريب 6531)

(1)Penicillin is a powerful drug used for treating many diseases caused by bacteria. It is grown from molds and was the first of the drugs known as antibiotics. Penicillin was discovered in 1928 by a British scientist named Sir Alexander Fleming. Through other had earlier noted its antibacterial effects. At the time, its importance was not realized. In 1939, Australian scientist Howard Walter Florey and a team of researchers at the University of Oxford made significant progress in showing the bacterial action of penicillin. Penicillin was discovered by....................