He is opposed to such a view that it is his intelligence and good luck that have ________ his success.

A．contributed in

B．led to

C．come out

D．resulted from

可用作缓释作用的包合材料是（）

A.γ-环糊精

B.α-环糊精

C.β-环糊精

D.葡糖基-β-环糊精

E.乙基化-β-环糊精