选用罗哌卡因实施可行走的硬膜外分娩镇痛最适宜的浓度是( )
A:0.15%~0.25%
B:0.1%~0.125%
C:0.1%~0.2%
D:0.075%~0.15%
E:0.15%~0.2%
出自:疼痛诊疗学高级职称