As is known to all, _______ strong and powerful China will certainly benefit _____ whole world.

A．a; a

B．the; a

C．the; the

D．a; the

为了增加概算指标的( )性，也以房屋的扩大的分部工程或结构构件为对象编制，称为扩大结构定额。

A．计划

B．标志

C．适用

D．代表