Conclusions PFIH and resistance had an increasing tendency. So it is time to reduce and avoid the risk factors and to take some effective control means.
结论PFIH及耐药性呈上升趋势，减少或避免可能导致真菌感染的各种因素，并采取有效的防治措施刻不容缓。
To be effective, and to avoid the development of resistance in bacteria, prophylactic antibiotic therapy is used for only a short time.
抗生素预防用药只能短期应用，以达到药物疗效及避免细菌耐药性产生。
For a long time, in the absence of an exact solution, the effective resistance of large complex random resistor lattices has been widely studied by using numerical method.
长期以来，对大型复杂无规电阻网络的等效电阻计算一直缺乏确切解。
For a long time, in the absence of an exact solution, the effective resistance of large complex random resistor lattices has been widely studied by using numerical method.
长期以来，对大型复杂无规电阻网络的等效电阻计算一直缺乏确切解。
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