A. 包括椎管内麻醉、表面麻醉、局部浸润麻醉和神经阻滞麻醉 B. 骶管麻醉常用0.1%或0.125%有比卡因或0.2%罗哌卡因 C. 硬膜外麻醉中罗哌卡因常用浓度0.1%、0.15%、0.2% D. 神经阻滞麻醉以臂丛神经麻醉、髂腹股沟神经和坐骨神经阻滞为主 E. 臂丛神经阻滞多采用腋路或肌间沟人路
A. aren’t many B. are very few C. isn’t much