—  _______ made Daisy wild with joy?

— Her success in the A-level exam this year. [ ]

A. How was it that      

B. When was it that

C. Why was it that        

D. What was it that

研究财政分权问题的着眼点是( )。

A．集权分权理论

B．公 * * 品和服务理论

C．俱乐部理论

D．财政联邦主义理论