配伍題丁哌卡因用于神經阻滯的濃度是()|利多卡因用于硬膜外麻醉的濃度是()|通常丁卡因用于表面麻醉的濃度是()
A.4%
B.1%~2%
C.1.5%~2%
D.0.25%~0.5%
E.0.3%~0.4%
A.4%
B.1%~2%
C.1.5%~2%
D.0.25%~0.5%
E.0.3%~0.4%