Penicillin antibiotics were among the first medications to be effective against many bacterial infections caused by staphylococci and streptococci.
举一反三
- 【单选题】(3分) Penicillin is a group of antibiotics which include ________, Penicillin V, procaine penicillin and benzathine penicillin. A. Penicillin D B. Penicillin G C. Penicillin F D. Penicillin E
- Many accidents ______ by careless drivers last year. A: are caused B: were caused C: was caused D: caused
- Many accidents____ by careless drivers last year. A: are caused B: were caused C: have caused D: will cause
- Bicycle-sharing is popular among many Chinese people as they provide an effective solution to all the problems.
- Smallpox can be effectively prevented by _______. A: vaccines B: penicillin C: antibiotics D: vitamines