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1.Method Treatment of 8,9 anhydroerythromycin 6,9 hemiketal with iodine in the alkaline solution provided corresponding N monodemethylated 12 membered ring erythromycin derivative.

1.方法8,9脱素6,9半缩酮与碘在碱性溶剂反应得到相应的N去甲基十素衍生物。

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60秒-国人 2020年5月合集

1.Of those, nearly half were resistant to two or more commonly used antibiotics, like penicillin and erythromycin.

当然,其中近半对两或两以上的常用抗生毒有抗药,比如青霉素和红霉素。

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ZTJ212 简·专八听力 音频

2.What they did was they took E.coli, which can be a pretty nasty pathogen, and they treated it with two common antibiotics: doxycycline and erythromycin.

他们所做的是,他们提取了大肠杆非常讨厌的病原体),然后用两常见的抗生素进行治疗:多西环素和红霉素。

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