It is not affected by any antibiotics or common bacteriostatic agents.它不受任何抗菌素或普通制菌剂的影响.Conclusion: Alum and dried alum have significant bacteriostatic effect in vitro.结论: 白矾及枯矾在体外有明显的抑菌作用.Objective: to eliminate the bac...
He asked to be connected to the central switchboard at London University.他要求转接到伦敦大学的电话总机。He instructed switchboard staff to divert all Laura's calls to him.他让总机接线员将劳拉所有的电话都转给他。Call the switchboard and ask for extens...