"antibiotics are used to fight such diseases as pneumonia, scarlet fever, and tuberculosis. Penicillin is the most widely used antibiotic. Others include streptomycin, chloromycetin, and aureomycin."

  • 抗生素用来抵御肺炎、猩红热,以及结核之类的疾

  • 互联网摘选 2025-01-19 23:33:41

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