变换反应水碳比大小的选择关系到()。 ["催化剂的生产能力","催化剂的温度","变换率的高低","A与B与C的综合"]
以下哪个解剖结构属于上颔骨() ["腭突","颞突","翼突","锥突","喙突"]
房颤粗颤波表现为() ["V1导联上f波>0.1mV","Ⅱ、Ⅲ、AvF导联上f波>0.1mV","Ⅱ、Ⅲ、AvF导联上f波>1mV","V1导联上f波>1mV","以上都不对"]
患者男性,75岁,平日BP180/80mmHg,脉压增大的原因可能是由于() ["冠状动脉硬化","主动脉硬化","心排出量增多","心排出量减少","肾动脉硬化"]
关于抗癫痫药的应用不正确的是()。 ["增药可适当快,减药要慢,逐一增减","控制发作后必须坚持长期服用,不宜随意减量或停药","换药期间应有5~7天的过渡期","停药应遵循缓慢和逐渐减量的原则","发作控制后即可停药"]
简述儿童期失神性癫痫的特点。