• 2022-06-01 问题

    Factor F is a kind of plasmid belonging to appendage, which mediates the conjugation of Escherichia coli

    Factor F is a kind of plasmid belonging to appendage, which mediates the conjugation of Escherichia coli

  • 2022-06-06 问题

    Vegetations are most common on A: the tricuspid valves B: the pulmonary valves C: the mitral and aortic valves D: the right atrial appendage

    Vegetations are most common on A: the tricuspid valves B: the pulmonary valves C: the mitral and aortic valves D: the right atrial appendage

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