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搜题
【单选题】
为延长局麻药的作用时间并减少吸收,宜采用的措施是
A.
增加局麻药的用量
B.
加大局麻药的浓度
C.
加入少量的去甲肾上腺素
D.
加入少量肾上腺素
E.
调节药物的PH至弱酸性
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