局麻药中加适量肾上腺素可使阻滞深度和时效增加并减慢全身吸收,其浓度一般以多少为合适 ( )A、1/400000B、1/600000C、1/1000...

作者: rantiku 人气: - 评论: 0
问题 局麻药中加适量肾上腺素可使阻滞深度和时效增加并减慢全身吸收,其浓度一般以多少为合适 ( )
选项 A、1/400000 B、1/600000 C、1/10000 D、1/200000 E、1/1000~2000
答案 D
解析

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