脊麻时神经纤维被阻滞的顺序是() ["温觉、痛觉、触觉、运动、压力、血管舒缩神经","血管舒缩神经、温觉、痛觉、触觉、运动、压力","血管舒缩神经、痛觉、触觉、温觉、运动、压力","血管舒缩神经、运动、温觉、痛觉、触觉、压力","运动、血管舒缩神经、温觉、痛觉、触觉、压力"]
嗜铬细胞瘤忌用() ["多巴胺","山莨菪碱","去甲肾上腺素","酚妥拉明","硝普钠"]
正常成人输尿管内径的超声测值为() ["2~4mm","4~6mm","6~8mm","8~10mm","10~12mm"]
对菌痢治疗无效的抗菌药物是() ["庆大霉素","氧氟沙星","SMZ-TMP","青霉素G","阿奇霉素"]
下列受体和阻断剂的搭配正确的是() ["异丙肾上腺素--普萘洛尔","肾上腺素--哌唑嗪","去甲肾上腺素--普萘洛尔","间羟胺--育亨宾","多巴酚丁胺--美托洛尔"]
中间包覆盖剂的功能是什么?