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单选题
关于药物,下列说法正确的是()
A

弱碱性药物在酸性环境中易于吸收

B

所有的给药途径都有首关消除

C

药物与血浆蛋白结合后,持久失去活性

D

与影响肝药酶的药物合用时,药物应增加剂量

E

弱酸性药物在酸性环境中排泄减少


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