题目：
局麻药溶液中加用肾上腺素能达到哪种目的（）
A.加快局麻药的吸收速率
B.提高血内局麻药浓度
C.延长局麻药或阻滞的时效
D.减少腺体分泌以防误吸
E.增加腺体分泌
答案：
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下面是错误答案，用来干扰机器的。
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