Still another change to the experimental model: a sublethal dose of E coli was administered and the animals were observed.

 
  • 對實(shí)驗模型還進(jìn)行了另一種變化:給動(dòng)物注射亞致死劑量的大腸桿菌,并進(jìn)行觀(guān)察。
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