We have every reason to believe that         2008 Beijing Olympic Games will be   success.

A．不填 ;a

B．the ;不填

C．the ;a

D．a ;a

单脾繁殖加脾是指单脾开始春繁的蜂群，在第（）张子脾封盖时即加第二张脾。

Ａ一

Ｂ二

Ｃ三

Ｄ四