I ____________ with Mockey next Sunday.[ ]
A. play
B. played
C. will play
D. playing
答案:C
可用作缓释作用的包合材料的是( )
A.γ-环糊精
B.α-环糊精
C.β-环糊精
D.羟丙基-β-环糊精
E.乙基化-β-环糊精
释乔木