干扰电疗时，电极面积＜50cm，其电流密度()干扰电疗时，电极面积＞50cm，其电流密度() ["A．0.1～0.2mA/cm","B．0.3～0.4mA/cm","C．0.5～0.6mA/cm","D．0.6～0.7mA/cm","E．0.8mA/cm"]
下段食管癌治疗应首选() ["A．手术","B．放疗","C．化疗","D．免疫治疗","E．综合治疗"]
下列哪种是目前治疗食管鳞癌的标准方案是() ["A．DDP+5-FU","B．DDP+VDS+BLM","C．CTX+PYM","D．DDP+MTX","E．VCR+VP16"]
什么叫呼吸衰竭?试述呼吸衰竭的血气诊断标准、分型及氧疗的原则。
用于锻炼肌肉的疗法()用于镇痛的疗法() ["A．神经肌肉电刺激疗法","B．超刺激疗法","C．电睡眠疗法","D．电兴奋疗法","E．直流电水电浴法"]
正常神经兴奋所需()失神经肌肉兴奋所需()正常肌肉兴奋所需()
