_______ Oscar winners are usually American films and actors but 2009 has seen _______ more international taste to the ceremony.

A．The; a

B．/; the

C．The; the

D．The; /

中央委员会全体会议由中央政治局召集，每年至少举行（）。

A.一次

B.两次

C.三次

D.四次