脊髓灰质炎的传播途径() ["A.血液传播","B.虫媒传播","C.粪-口途径","D.空气飞沫传播","E.经土壤传播"]
监测鼻咽温电极从鼻孔插入深度相当于()。 ["甲颏间距","口角到乳突的距离","外耳道到外鼻孔的距离","鼻尖到甲状软骨的距离","门齿到环状软骨的距离"]
下列选项不属于免疫学实验方法诊断效率评价的是() ["诊断敏感性","诊断特异性","诊断效率","批间精密度和批内精密度","阳性预测值和阴性预测值"]
使脉搏氧饱和度假性增高的干扰因素是()。 ["静注亚甲蓝","正铁血红蛋白血症","碳氧血红蛋白血症","手术电凝","肢体末梢血流灌注不良"]
下列因素中,对骨折愈合影响最大的是() ["外伤所致的骨折类型","骨折部位的血液供应情况","患者的年龄","骨折移位情况","受伤后是否加强营养"]
试述子宫内膜组织学的周期性变化。