一急性横贯性脊髓炎是指() ["脊髓白质脱髓鞘或坏死所致的急性横贯性损害","椎管内占位性病变而引起的脊髓受压","脊髓血管的发育异常","脊髓先天发育异常,胚胎期神经管关闭不全","维生素B缺乏引起的神经系统变性疾病"]
动脉导管未闭的主要病变为() ["大动脉错位","肺动脉与降主动脉之间的胎儿循环未闭合","主动脉骑跨","肺动脉狭窄","卵圆孔未闭"]
转移性肿瘤最常见于淋巴结的部位是() ["滤泡中心","皮质","副皮质区","髓窦","包膜下窦"]
法洛四联症病理解剖改变不包括() ["室间隔缺损","房间隔缺损","主动脉骑跨","右心室肥厚","肺动脉狭窄"]
甲状腺功能亢进时,腹泻的主要发生机制是()。 ["肠蠕动增强","肠内容物渗透压增高","肠腔内渗出物增加","肠液分泌增多","VIP的作用"]
小儿于生后()口服脊髓灰质炎疫苗,()注射麻疹疫苗,()注射百日咳、白喉、破伤风三联疫苗。