阿霉素酸甲基葡聚糖微球在水中不释药,而在生理盐水中释药的机理是()
A. 水不溶性包衣膜
B. 含水性孔道的包衣膜
C. 不溶性骨架微球
D. 离子交换作用
E. 溶蚀与扩散、溶出结合作用
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In the sentence "She finally decides to join the party", the relationship between "she" and "decides" is called______.
A. aspect
B. tense
C. government
D. agreement
将PVP加至胰岛素、肾上腺素或青霉素等制剂,其长效机理主要是()
A. 增加黏度以减少扩散速度
B. 形成亲水凝胶型骨架
C. 药物与高分子形成难溶性盐
D. 离子交换作用
E. 渗透泵原理
The Transformational-Generative Grammar was first put forward by______.
A. Saussure
B. John Austin
C. Noam Chomsky
D. M.A.K. Halliday
下列属于可作为肠溶衣材料的组合是()
A. EC,HPMCP
B. MCC,HPC
C. PVPP,HPMC
D. PEG,PVP
E. CAP,Eudragit L