. --- Steve has got the first prize in the maths contest.

--- ______ is no wonder that he looks so happy today.

A．It

B．That

C．This

D．There

发行人可聘请( )等机构担任债权代理人。

A．银行

B．信托投资公司

C．基金管理公司

D．会计事务所

E．律师事务所