— What's _____ population of the U. S. A. 9

— It has _____ population of about 300,000,000. [ ]

A. a; a

B. the; a

C. the; the

纳税申报的形式主要有( )。

A．直接申报

B．委托申报

C．数据电文申报

D．邮寄申报