45. What will the author probably in the next paragraph? (A) other characteristics of successfully managed companies (B) Japanese economic recession (C) the prospect of the Internet (D) the role of leadership D. 46-50題 The antibiotic era did not begin until about 1928, with the discovery by Sir Alexander Fleming, at St. Mary's Hospital in England, that a growth culture of the pub-producing, Staphylococcus aureus, had disappeared in an area in which a green mold was growing; since the organism that produced the substance that killed the bacteria was a species of penicillium, Fleming named the substance was unstable and lacked potency; not until several years later did several workers at Oxford University examine the possibility that stable penicillin might be produced in large enough quantities to treat human disease. In 1941 the drug was used to treat serious infections; the results were dramatic, as patients who received penicillin made rapid and complete recoveries. World War II interfered, and stabilization were, instead, developed in the United States. The development of penicillin was the beginning of era that has been called the golden age of chemotherapy. Since 1948, a large of substances, which inhibit or kill bacteria and some fungi, have been discovered.
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