____ friend of my grandfather's will come tomorrow. I'm wondering how old ____ man he might be. [ ]

A. The; a

B. The; the

C. A; a

D. A; the

本讲提到的柔性行政管理方式包括（）。

A.合同

B.资助

C.奖励

D.惩罚

E.监禁