People can get their money _______ a bank clerk. [ ]
A. from
B. to
C. in
D. about
答案:A
单凝聚法制备微囊的成囊材料是()
A.明胶
B.乙基β-CYD
C.PEG类
D.HPMC
E.羟丙基β-CYD
槐米中的芦丁属于( )
A.蒽醌 B.菲醌 C.黄酮醇 D.黄酮 E.异黄酮